Find an equation in slope-intercept form of the line that has slope –9 and passes through point A(-9, - 1). a. y = -9x - 82
c. y = -9x + 82
b. y = 82x-9
d. y = 9x-82

Step-by-step explanation:

y + 1 = -9(x + 9)

y + 1 = -9x - 81

y = -9x - 82

answer is A

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