Question

the equation $c = 0.20t + 3.50$ shows the relationship between the charge $c$ in dollars for renting a kayak for $t$ minutes. what is the meaning of the slope of the equation?
it costs $0.20 per minute to rent the kayak.
you have to pay $0.20 up front before using the kayak at all.
for $1.00, you can rent a kayak for 20 minutes.
every 2 minutes, you have to pay $1.00.

Explanation:

The given equation $c = 0.20t + 3.50$ follows the slope-intercept form $y=mx+b$, where $m$ (the coefficient of $t$) is the slope. Here, $m=0.20$, which represents the rate of change of the total charge $c$ with respect to time $t$ in minutes. This means each additional minute of kayak rental adds $0.20 to the total cost.

Answer:

A. It costs $0.20 per minute to rent the kayak.