Question

Please help asap thx :)

Answer 1

Explanation:

the average rate of change is

(f(x2) - f(x1)) / (x2 - x1)

so, for x = 1 and 2

(4×3² - 4×3¹) / (2 - 1) = 36 - 12 = 24

for x = 3 and 4

(4×3⁴ - 4×3³) / (4 - 3) = 324 - 108 = 216

so the second rate is 216/24 = 9 times greater than the first rate.