Question

Use the function f(x) = 2x3 - 3x2 + 7 to complete the exercises.

f(−1) =
f(1) =
f(2) =

Answer 1

f(-1) = 2

f(1) = 6

f(2) = 11

Explanation:

Got it right on Edge (⌣_⌣”)

Answer 2

2, 6, 11

Explanation:

To evaluate f(- 1) substitute x = - 1 into f(x)

f(- 1) = 2(- 1)³ - 3(- 1)² + 7 = 2(- 1) - 3(1) + 7 = - 2 - 3 + 7 = 2

Similarly

f(1) = 2(1)³ - 3(1)² + 7 = 2(1) - 3(1) + 7 = 2 - 3 + 7 = 6

f(2) = 2(2)³ - 3(2)² + 7 = 2(8) - 3(4) + 7 = 16 - 12 + 7 = 11