Two trucks leave a warehouse at the same time. One travels due north at an average speed of 48 miles per hour, and the other travels due south at an average speed of 46 miles per hour. After how many hours will the two trucks be 470 miles apart?

true

step-by-step explanation:

yes. we do proportions in probabilities.

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is