Question

Tell whether the data sets show a proportional relationship. If so, identify the constant of proportionality. Number of Baskets356815Cost $12 $20 $24 $32 $60 A. Not proportional B. Proportional; k = 1/4 OC. Proportional; k = 9 D. Proportional; k = 4

Answer 1

x is the price for one basket and that will be the constant of proportionality

if we multiply x times the number of baskets we will obtain the cost

so the equation for each number of basket will be

3x= 12

5x=20

6x=24

we can solve one equation in order to know the constant

for example the equation with 5 baskets

x=20/5

x=4

the constant of proportionality is x=4

the correct answer is D