Question

Use the table below. Do x and y have a proportional relationship? Explain.

Answer 1

Answer:

No

Step-by-step explanation:

For x and y to have a proportional relationship, then

the ratio of k = $\frac{y}{x}$ must be equal for all points

(2, 5) → k = $\frac{5}{2}$ = 2.5

(3, 7.5) → k = $\frac{7.5}{3}$ = 2.5

(5, 12.5) → k = $\frac{12.5}{5}$ = 2.5

(18, 8) → k = $\frac{18}{8}$ = 2.25 ≠ 2.5

k is not equal for all values , hence no proportional relationship exists