Question

Examine the following table. Determine whether the rate of change is constant or variable. If it is constant, state the rate of change. The rate of changea.variableb.constant,$38/2 sweatersc.constant,$19/sweaterd.constant,$57/3 sweaters

Answer 1

Rate of change is not constant

First column and second column

Rate of chage = (76-38)/(4-2) = 38/2 = 19

second and third

Rate of chnage = (133-76)/ (7-4)

= 57/3 = 19

Third and fourth

Rate of change = (171-133)/(9-7)

= 38/2 = 19