Evaluate f(x) = 2x + 3 at x = -2.

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Study for the 8th Grade FAST Mathematics Pre-Algebra Test. Enhance your skills with interactive flashcards and multiple choice questions, each containing hints and explanations to boost your comprehension and readiness for the exam. Get ready to ace your test!

Multiple Choice

Evaluate f(x) = 2x + 3 at x = -2.

Explanation:
Evaluating a linear function means substituting the given x-value into the expression and simplifying. For f(x) = 2x + 3, plug in x = -2: f(-2) = 2(-2) + 3 = -4 + 3 = -1. So the function’s value at x = -2 is -1. If you got a different number, that would come from using a different x-value.

Evaluating a linear function means substituting the given x-value into the expression and simplifying. For f(x) = 2x + 3, plug in x = -2: f(-2) = 2(-2) + 3 = -4 + 3 = -1. So the function’s value at x = -2 is -1. If you got a different number, that would come from using a different x-value.

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