Can someone please help me I added the a screenshot of the question below

Answers:

Change in y (Delta y)= -15, Change in x (Delta x)= 1, Average rate of change = -15

Step-by-step explanation:

This is just simply finding the slope of the selected area.

Rise is -15, Run is 1, therefore the slope is -15/1=-15

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)