Lesson 7
Compare Functions
Name:
Solve the problems.
1 A hardware store charges a $\$ 30$ rental fee and $\$ 15$ per day to rent a power washer. Which equation correctly relates the total cost $y$ to rent the washer for $x$ days?
A $y=15+30 x$
C $y=30-\frac{x}{15}$
B $y=30+15 x$
D $y=15-\frac{x}{30}$

Answer

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Answer

The correct equation is $y = 15 + 30x$.

Steps

Step 1 ：Find the equation that represents the total cost of renting the power washer for x days. The total cost consists of a fixed rental fee of $30 and a variable cost of $15 per day.

Step 2 ：The correct equation is $y = 15 + 30x$.

Lesson 7Compare FunctionsName:Solve the problems.1 A hardware store charges a $\$ 30$ rental fee and $\$ 15$ per day to rent a power washer. Which equation correctly relates the total cost $y$ to rent the washer for $x$ days?A $y=15+30 x$C $y=30-\frac{x}{15}$B $y=30+15 x$D $y=15-\frac{x}{30}$

Answer

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