F(x)=-2x² + 3x-6, find f (3)
2 answers:
Answer:
f(3) = -15
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
<u>Algebra I</u>
Functions Function Notation Step-by-step explanation:
<u>Step 1: Define</u>
f(x) = -2x² + 3x - 6
f(3) is x = 3 for the function f(x)
<u>Step 2: Evaluate</u>
Substitute in <em>x</em> [Function]: f(3) = -2(3)² + 3(3) - 6 Exponents: f(3) = -2(9) + 3(3) - 6 Multiply: f(3) = -18 + 9 - 6 Add: f(3) = -9 - 6 Subtract: f(3) = -15
Answer:
f(3) = -15
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
Left to Right
Algebra I
Functions
Function Notation
Step-by-step explanation:
Step 1: Define
f(x) = -2x² + 3x - 6
f(3) is x = 3 for the function f(x)
Step 2: Evaluate
Substitute in x [Function]: f(3) = -2(3)² + 3(3) - 6
Exponents: f(3) = -2(9) + 3(3) - 6
Multiply: f(3) = -18 + 9 - 6
Add: f(3) = -9 - 6
Subtract: f(3) = -15
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