1) Melissa will participate in a charity walkathon. Her mother will donate $10 for Melissa's
participation plus an additional $2 for each mile that Melissa walks.
a) If Melissa walks 15 miles, what will be the amount of her mother's donation?

$40

Step-by-step explanation:

we know that

The linear equation in slope intercept form i equal to

where

y is the amount of her mother's donation

x is the number of miles that Melissa walks

where

m is the slope

b is the y-intercept

In this problem

The slope is

The y-intercept is

substitute

so

For x=15 miles

substitute