Question

For the function h(x) = 4x2 -5x what is the value of (-3)

Answer 1

f(-3) = 51

Explanation:

f(x) = 4x^2 - 5x

f(-3) = 4(-3)^2 - 5(-3)

f(-3) = 4*9 - (-15)

f(-3) = 36 + 15

f(-3) = 51

Answer 2

h(-3) = 51

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

• Function Notation

Explanation:

Step 1: Define

h(x) = 4x² - 5x

h(-3) is x = -3

Step 2: Evaluate

1. Substitute in x: h(-3) = 4(-3)² - 5(-3)
2. Exponents: h(-3) = 4(9) - 5(-3)
3. Multiply: h(-3) = 36 + 15
4. Add: h(-3) = 51