Which of the following equations describes the line that passes through points (1,9) and (-2,3). A. Y-3=2(x+2). B. Y-3=2(x-2). C. y-9=2(x-1). D. Y+2=2(x-3). E. y-2= 2(x-3). F. y-1=2(x-9)

ab will be equal to

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.