# Writing a Function Rule

Document Sample

```					WRITING A FUNCTION RULE:
WRITE A FUNCTION RULE FROM THE
TABLE:
x                F(x)
1                 -1
2                 0
3                 1
4                 2
WRITE A FUNCTION RULE FROM THE
TABLE:
x                                    F(x)
1                                     -1
2                                     0
3                                     1
4                                     2

Ask yourself, “What can I do to 1 to get to -1,
2 to get to 0….?
WRITE A FUNCTION RULE FROM THE
TABLE:
x                                    F(x)
1                                     -1
2                                     0
3                                     1
4                                     2

Ask yourself, “What can I do to 1 to get to -1,
2 to get to 0….?

Subtract 2 from each input value.
WRITE A FUNCTION RULE FROM THE
TABLE:
x                                    F(x)
1                                     -1
2                                     0
3                                     1
4                                     2

Ask yourself, “What can I do to 1 to get to -1,
2 to get to 0….?

Subtract 2 from each input value.

So, f(x) equals x minus 2.
WRITE A FUNCTION RULE FROM THE
TABLE:
x                                   F(x)
1                                    -1
2                                    0
3                                    1
4                                    2

Ask yourself, “What can I do to 1 to get to -1,
2 to get to 0….?

Subtract 2 from each input value.

So, f(x) equals x minus 2.

f(x) = x – 2
WRITE A FUNCTION RULE FROM THE
TABLE:
x                                     f(x)
-4                                     -2
-2                                     -1
6                                     3
8                                     4

Ask yourself, “What can I do to -4 to get to -2?”
to -2 to get to -1…?
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:

mower. You charge \$35 to mow one lawn. Write
the function rule for your profit. Determine the
breakeven point.
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:

mower. You charge \$35 to mow one lawn. Write
the function rule for your profit. Determine the
breakeven point.
   Profit is equal to income less the expense.
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:

mower. You charge \$35 to mow one lawn. Write
the function rule for your profit. Determine the
breakeven point.
 Profit is equal to income less the expense.
 Profit is the dependent variable since it depends on
the number of lawns you mow.
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:

mower. You charge \$35 to mow one lawn. Write
the function rule for your profit. Determine the
breakeven point.
 Profit is equal to income less the expense.
 Profit is the dependent variable since it depends on
the number of lawns you mow.
 Therefore, the independent variable is the number of
lawns mowed, and represents the income.
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:

mower. You charge \$35 to mow one lawn. Write
the function rule for your profit. Determine the
breakeven point.
 Profit is equal to income less the expense.
 Profit is the dependent variable since it depends on
the number of lawns you mow.
 Therefore, the independent variable is the number of
lawns mowed, and represents the income.
 The constant quantity is the cost of the lawn mower,
and represents the expense.
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:

mower. You charge \$35 to mow one lawn. Write
the function rule for your profit. Determine the
breakeven point.
   Profit is equal to income less the expense.
   Profit is the dependent variable since it depends on
the number of lawns you mow.
   Therefore, the independent variable is the number of
lawns mowed, and represents the income.
   The constant quantity is the cost of the lawn mower,
and represents the expense.
   At the breakeven point there is no profit, p(m) = 0
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:

mower. You charge \$35 to mow one lawn. Write
the function rule for your profit. Determine the
breakeven point.
   Profit is equal to income less the expense.
   Profit is the dependent variable since it depends on
the number of lawns you mow.
   Therefore, the independent variable is the number of
lawns mowed, and represents the income.
   The constant quantity is the cost of the lawn mower,
and represents the expense.
   At the breakeven point there is no profit, p(m) = 0
   m = number of lawns mowed
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:

mower. You charge \$35 to mow one lawn. Write
the function rule for your profit. Determine the
breakeven point.
   Profit is equal to income less the expense.
   Profit is the dependent variable since it depends on
the number of lawns you mow.
   Therefore, the independent variable is the number of
lawns mowed, and represents the income.
   The constant quantity is the cost of the lawn mower,
and represents the expense.
   At the breakeven point there is no profit, p(m) = 0
   m = number of lawns mowed
   p(m) = profit (profit is a function of m)
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:
mower. You charge \$35 to mow one lawn. Write the
function rule for your profit. Determine the
breakeven point.
   Profit is equal to income less the expense.
   Profit is the dependent variable since it depends on the
number of lawns you mow.
   Therefore, the independent variable is the number of lawns
mowed, and represents the income.
   The constant quantity is the cost of the lawn mower, and
represents the expense.
   At the breakeven point there is no profit, p(m) = 0
   m = number of lawns mowed
   p(m) = profit (profit is a function of m)
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:
mower. You charge \$35 to mow one lawn. Write the
function rule for your profit. Determine the
breakeven point.
   Profit is equal to income less the expense.
   Profit is the dependent variable since it depends on the
number of lawns you mow.
   Therefore, the independent variable is the number of lawns
mowed, and represents the income.
   The constant quantity is the cost of the lawn mower, and
represents the expense.
   At the breakeven point there is no profit, p(m) = 0
   m = number of lawns mowed
   p(m) = profit (profit is a function of m)
   Profit = 35 times the number of lawns mowed minus cost of
the mower.
WRITE A FUNCTION RULE FROM A VERBAL
EXPRESSION, AND SOLVE USING THE RULE:
   Your uncle Fred loaned you \$210 to buy a lawn mower.
You charge \$35 to mow one lawn. Write the function rule
for your profit. Determine the breakeven point.
   Profit is equal to income less the expense.
   Profit is the dependent variable since it depends on the
number of lawns you mow.
   Therefore, the independent variable is the number of lawns
mowed, and represents the income.
   The constant quantity is the cost of the lawn mower, and
represents the expense.
   At the breakeven point there is no profit, p(m) = 0
   m = number of lawns mowed
   p(m) = profit (profit is a function of m)
   Profit = 35 times the number of lawns mowed minus cost of
the mower.
   p(m) = 35m – 210
TO FIND THE BREAK EVEN POINT, SET THE
PROFIT EQUAL TO ZERO.
TO FIND THE BREAK EVEN POINT, SET THE
PROFIT EQUAL TO ZERO.

   0 = 35m – 210

```
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
 views: 0 posted: 5/24/2013 language: Korean pages: 24