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

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Prepare for the 8th Grade FAST Mathematics Test with our Pre-Algebra quiz. Study with multiple choice questions, each with hints and explanations. Build your confidence and ensure you're ready to excel!

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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