Question

Evaluate for f(-2)
f(x) = 3/2x - 4

Answer 1

Answer:

f(-2) = -7

General Formulas and Concepts:
Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Algebra I

Functions

• Function Notation

Step-by-step explanation:

Step 1: Define

Identify given function.

$\displaystyle f(x) = \frac{3}{2}x - 4$

Step 2: Find f(-2)

1. [Function] Substitute in x:
   $\displaystyle f(-2) = \frac{3}{2}(-2) - 4$
2. Multiply:
   $\displaystyle f(-2) = -3 - 4$
3. Subtract:
   $\displaystyle f(-2) = \boxed{ -7 }$

∴ the function when x = -2 is equal to -7.

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Topic: Algebra I