Which of these tables represents a non-linear function? у
20
х
17
18
19
20
19
18
17
х
17
18
19
20
у
--16
-17
-18
-19
х
17
y
16
18
17
19
20
19
20
X х
у

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

the answer will be

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

you already gave the answer

step-by-step explanation: