The following tables represents the number of weeks and pounds (lbs) of weight loss for Cindy and Mark. What is the average rate of change for Cindy and Mark?

Cindy:
Time (Weeks): 0 1 2 3 4 5
Weight (lbs): 143 138 135 135 133 130.5

Mark:
Time (Weeks): 0 1 2 3 4 5
Weight (lbs): 245 240 237 232 226 220

A. Cindy = 2.5lb loss a week; Mark = 5lb loss a week.
B. Cindy = 3lb loss a week; Mark = 5.25lb loss a week.
C. Cindy = 5lb loss a week; Mark = 2.5lb loss a week.
D. Cindy = 5.25lb loss a week; Mark = 3lb loss a week.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

333.74 ! should be your answer for this question