Find the missing side length
A man rides his bike 15 miles southeast
and then 12 miles west. How far is he
from his starting point?

19.21

Step-by-step explanation:

12^2 + b^2 = 15^2

subtract 12^2 from both sides

b^2 = 15^2 - 12^2

b^2 = 81

b = 9

credit to melissanix90 for helping

Hope this helps :)

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