Answer:
m = 2, initial value = 4.5 or $4.50
Step-by-step explanation:
We know that renting a raft costs 2 dollars/hr plus some rental fee that we need to find.
We also know that renting a raft for 4 hours will cost $12.50. So we can do this:
$12.50 - (2.00 [tex]\frac{dollars}{hrs}[/tex] × 4 hrs) = $4.50, which is the "b" in the standard equation for y = mx + b
So, our equation is y = 2x + 4.5
The rate of change is the slope, which is the coefficient of the x.
m = 2
Our initial value is when x = 0.
y = 2(0) + 4.5
y = 4.5
