Question

Daniela rented a car. She paid a flat rate for the day, plus a cost per mile charge. The expression 0.15x+220.15x+22 represents the amount Daniela paid.
What do the different parts of the expression model?

Drag the parts of the expression into the boxes to match each description.


Daily flat rate Cost per mile Number of miles driven
22 0.15 x 0.15x

Answer 1

Let

x--------> the number of miles driven

y--------> the amount in dollars that Daniela paid

we know that

$y=0.15x+22$

where

$22$ -------> represent the daily flat rate (the y-coordinate of the y-intercept of the linear equation)

$0.15$ -------> represent the cost per mile (the slope of the linear equation)  

$x$---------> number of miles driven

Answer 2

Daily Flat 22
Cost per mile 0.15
Miles driven x