1. Estimate the y intercept for the line of best fit for the data 2. What kind of correlation exists between the data graph

10)  (15, 2)

11)  5

12)  positive

Step-by-step explanation:

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