Unit 5 Practice Test #3

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					Name: ________________________ Class: ___________________ Date: __________                               ID: A


Unit 5 Practice Test #3

   1   Which of the following graphs could be represent       2   The table shows the number of Nachos and
            2
       by 2x ?                                                    Rice Bowls sold in the cafeteria for several days
                                                                  in one week.
       A
                                                                  Day                 Nachos        Rice Bowls
                                                                  Monday               51               49
                                                                  Tuesday              58               65
                                                                  Wednesday            53               51
                                                                  Thursday             60               58
                                                                  Friday               54               57

                                                                  What is the difference between the median of the
                                                                  data?
       B
                                                                  F   54
                                                                  G   111
                                                                  H   57
                                                                  I    3
                                                              3   Which of the following equations could represent
                                                                  the graph below?




       C




                                                                  A   y = −x 2 -1
       D
                                                                  B   y = x 2 -1
                                                                  C   y = −x 2 +1
                                                                  D   y = −x 3 -1




                                                          1
Name: ________________________                                                                       ID: A


   4   What is the slope of the line?                      6   Which equation best represents the graph below?




       F   −2                                                  F   y = −2x − 2
            1
       G    2                                                  G   y = 2x − 3
       H   −2
                1                                              H   y = −2x − 3
                                                               I   y = −3x − 2
       I    2
                                                           7   What is the slope of the staircase shown?
   5   What is the slope of the line passing through
       Ê −7,7 ˆ and Ê 5,−5 ˆ ?
       Á      ˜     Á      ˜
       Ë      ¯     Ë      ¯




                                                                   1
                                                               A   2

                                                                   −2
                                                                       1
                                                               B
           −6
                1
       A                                                       C   2
       B   1                                                   D   −2
       C   −1
            1
       D    6




                                                       2
Name: ________________________                                                                    ID: A


   8   Which graph of has a slope of –1?




       F                                              H




       G                                              I
   9   The chart shows the temperature in Whittier for the first eight days of December.

       Day          1st       2nd          3rd     4th        5th        6th        7th    8th
       Temp         51 û      61 û         60 û    63 û       54 û       51 û       57 û   49 û
       fû

       What is the median of the data?

       A   51                 B      62               C    55.5                 D   56




                                                          3
Name: ________________________                                                                              ID: A


   10   The graph below shows the cost for purchasing             12   Which equation best represents the graph below?
        varying amounts of gas.

        According the the graph below, how much will it
        cost to buy 2 gallons of gas?




                                                                       F   y = 3x − 2
                                                                       G   y = 3x + 3
                                                                       H   y = −2x + 3
        F   $0.00
                                                                       I   y = −3x − 2
        G   $4
        H   $10                                                   13   What is the slope of this line?
        I   $2
   11   Jared scored the following number of points in
        his last 7 basketball games:
        25, 1, 5, 16, 20, 11, 14. What is the lower quartle
        number of points scored by Jared in these 7
        games?


        A   5
        B   14
        C   1
        D   20
                                                                       A   −2
                                                                           −2
                                                                            1
                                                                       B
                                                                       C   2
                                                                            1
                                                                       D    2




                                                              4
Name: ________________________                                                                        ID: A


   14   Determine whether the following set of points       15   Which of the following equations could represent
        have a positive, negative, or no correlation:            the graph below?




                                                                          1 3
                                                                 A   y=       x −1
        F   positive correlation                                         −2
        G   no correlation                                                1 3
                                                                 B   y=       x +1
        H   negative correlation                                         −2
        I   none of the above
                                                                 C   y = −2x 3 +1
                                                                 D   y = 2x 3 +1




                                                        5
Name: ________________________                                                                             ID: A


   16   The table below shows the charges for renting computer equipment. What graph best represents these prices?

                                                   computer equipment
        Number of Hours        0           1          2          3             4           5
        Total Cost ($)         45          70         95        120           145         170

        F                                             H




        G                                             I




                                                          6
Name: ________________________                                  ID: A


   17   Which best represents the graph of y = 4x – 1
        A                                             C




        B                                               D




   18   The box-and-whisker plot below represents the
        number of daily absences in September.




        What is the upper quartile number of daily
        absences in September?

        F   21
        G   3
        H   4
        I   6




                                                            7
Name: ________________________                                                                              ID: A


   19   Which statement best describes the relationship        21   The following data represents the number of
        between number of rainy days and                            students in after-school programs:
        number of umbrellas sold ?                                  1, 3, 7, 8, 24, 23, 17. These data are shown in the
                                                                    box-and-whisker plot below.




                                                                    What is the median of the data?
                                                                    A 8
                                                                    B 3
                                                                    C 1
                                                                    D 23
        Which statement best describes the relationship
        between number of rainy days and
        number of umbrellas sold ?

        A   As number of rainy days increases,
            number of umbrellas sold decreases.
        B   As number of rainy days decreases,
            number of umbrellas sold decreases.
        C   As number of rainy days increases,
            number of umbrellas sold increases.
        D   As number of rainy days increases,
            number of umbrellas sold increases at first,
            then decreases.
   20   Which linear equation is shown in the graph
        below?




            y = −5 x – 4
                 1
        F
        G   y = −5x – 4
                1
        H   y = 5x – 4
        I   y = 5x – 4




                                                           8
                              ID: A


Unit 5 Practice Test #3
Answer Section

   1    C
   2    I
   3    A
   4    I
   5    C
   6    H
   7    A
   8    F
   9    C
   10   H
   11   A
   12   F
   13   C
   14   H
   15   C
   16   H
   17   D
   18   F
   19   C
   20   I
   21   A




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