Question

Ed’s rental charges a flat fee of $5 plus $2 per hour to rent a pair of skates.


Write an equation to model the cost of renting skates, y, for x hours.




Graph the equation. Label the y-intercept.



Use the graph to find the cost for renting the skates for 2 hours. Show the details on your graph above.

What is the cost?

Answer 1

flat doesn't change
2 changes with x
y=2x+5
yint is 5

to graph
start at center and go 5 up, that is y intercept
go 1 right and 2 up, that is another point

y=2(2)+5
y=4+5
y=9
cost $9 to rent for 2 hours