9. If f(x)=-2x^2+4x-6,
then f(2)=

f(2) = -6

General Formulas and Concepts:

Order of Operations: BPEMDAS

Substitution and Evaluation

Step-by-step explanation:

Step 1: Define

f(x) = -2x² + 4x - 6

f(2) is x = 2

Step 2: Solve

Substitute:                          f(2) = -2(2)² + 4(2) - 6Exponents:                         f(2) = -2(4) + 4(2) - 6Multiply:                              f(2) = -8 + 8 - 6Add:                                    f(2) = -6

B. 2 1/2 feet. multiply 2.5 inches by 12 to get thirty inches then divide by 12 to get 2.5 feet