A5-foot ladder is leaning against a 4-foot wall. how far must the bottom of the ladder be from the base of the wall so that the top of the ladder rests on the top of the wall?

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

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!