Sara left home at 11: 15am. it took her 5 minutes to drive to the mall. she shopped for 55 minutes and spent 1.5 hours at the beauty shop. she had to wait 15 minutes to get food at the take-out restaurant. it took her another 10 minutes to drive home. if she drove straight home, what time did she return?

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