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					Find the vertex by completing the square. Find the x- and y-intercepts. Graph.                               y

1) y = 2x2 – 8x + 5
Solve by any method except graphing.
3) 5x2 – 40 = 0                4) 3x2 – 16x – 12 = 0               5) x2 + 10 = 0

6) 3x2 = -12                     7) 6x2 – 5x – 1 = 0               8) 2x2 + 36 = 0
                                                                                                                        x

9) x2 + 6x + 8 = 0               10) x2 – 9x + 18 = 0              11) 2x2 – 3 = x

12) 3x2 + 12x = 0                13) 16x2 = 25                     14) x2 – 5x = 0

15) 2x2 + 5x – 7 = 0             16) x2 = 3x - 1                  17) 3x2 – 4x – 2 = 0

Find the vertex by completing the square
18.y = x2 + 12x + 4     19) y = x2 – 8x + 15 20) 2x2 + 6x + 22 = y 21) -x2 – 2x – 8 = y

Solve by using the graphing calculator.
    22) x2 – x – 1 = 0          23) 3x + 5 = -3x2                  24) x2 – 4x – 8 = 0

Solve the following by the method of your choice (except no graphing)
25) 3x2 + 8x = 16        26) 9x2 – 16 = 0         27) 25x2 – 15x = 0       28) 4x2 + 8 = 0            29) x2 + 8x = 4

Give the discriminant of the following equations and tell how many & what type of solutions it has.
30) 2x2 – 4x + 5 = 0               31) 3x2 – 4x – 7 = 0           32) 4x2 – 12x + 9 = 0

Find the vertex by completing the square. Find the x- and y-intercepts. Graph.
                                                                                                             y
1) y = 2x2 – 8x + 5
Solve by any method except graphing.
3) 5x2 – 40 = 0                4) 3x2 – 16x – 12 = 0               5) x2 + 10 = 0

6) 3x2 = -12                     7) 6x2 – 5x – 1 = 0               8) 2x2 + 36 = 0
                                                                                                                        x
9) x2 + 6x + 8 = 0               10) x2 – 9x + 18 = 0              11) 2x2 – 3 = x

12) 3x2 + 12x = 0                13) 16x2 = 25                     14) x2 – 5x = 0

15) 2x2 + 5x – 7 = 0             16) x2 = 3x - 1                  17) 3x2 – 4x – 2 = 0

Find the vertex by completing the square
18.y = x2 + 12x + 4     19) y = x2 – 8x + 15 20) 2x2 + 6x + 22 = y 21) -x2 – 2x – 8 = y

Solve by using the graphing calculator.
    23) x2 – x – 1 = 0          23) 3x + 5 = -3x2                  24) x2 – 4x – 8 = 0

Solve the following by the method of your choice (except no graphing)
25) 3x2 + 8x = 16        26) 9x2 – 16 = 0         27) 25x2 – 15x = 0       28) 4x2 + 8 = 0            29) x2 + 8x = 4

Give the discriminant of the following equations and tell how many & what type of solutions it has.
30) 2x2 – 4x + 5 = 0               31) 3x2 – 4x – 7 = 0           32) 4x2 – 12x + 9 = 0

				
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