F(x) = 3x +5
Find f(-4)

f(-4) = -7

General Formulas and Concepts:

Step-by-step explanation:

Step 1: Define

f(x) = 3x + 5

f(-4) is x = -4

Step 2: Solve

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