A function is defined by f (x) = 5 (2 minus x). What is f(–1)? –5 5 15 53
2 answers:
Answer:
f(-1) = 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>
<em>Identify</em>
f(x) = 5(2 - x)
<u>Step 2: Evaluate</u>
- Substitute in <em>x</em> [Function f(x)]: f(-1) = 5(2 - -1)
- (Parenthesis) Subtract: f(-1) = 5(3)
- Multiply: f(-1) = 15
Answer:
15
Step-by-step explanation:
f (x) = 5 (2 minus x)
Let x = -1
f (-1) = 5 (2 minus -1)
= 5( 2+1)
= 5(3)
=15
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