Question

Linear Functions Project

21. Justin parks at the airport. To enter the parking
garage it is $3 and for every hour Justin is charged an
extra $2. Write an equation to show how much the
parking garage charges.
How much will Justin be charged if he stays four hours?

Answer 1

3+2+3+2+3+2+3+2

5+3+2+3+2

8+2+3+2

10+3+2

13+2

15

$15 is charged in 4 hrs ♡

Answer 2

Let x be the number of hours Justin stays in the parking garage. The equation that represents the parking garage charges, y, is given by:

y = 2x + 3

In this equation, the fixed charge of $3 is added to the variable charge of $2 per hour.

To find out how much Justin will be charged if he stays for four hours, we can substitute x = 4 into the equation and solve for y:

y = 2(4) + 3

y = 8 + 3

y = 11

Therefore, if Justin stays for four hours, he will be charged $11.