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F-IF.9 Warmup M1-027-A05-V04

Compare two functions represented in different ways: equations, graphs, tables, or verbal descriptions.

Compare two function values at the same input

Problem

Compare the values of two functions at \(x=-2\): table shows \(f(-2)=9\) and \(g(x)=2x+4\).

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From the table, f(-2)=9, and substituting -2 into g(x)=2x+4 gives g(-2)=8, so f has the greater value.

From the table, f(-2)=9, and substituting -2 into g(x)=2x+4 gives g(-2)=0, so g has the greater value.

From the table, f(2)=9, and substituting 2 into g(x)=2x+4 gives g(2)=8, so f has the greater value.

From the table, f(-2)=9, and substituting -2 into g(x)=2x+4 gives g(-2)=0, so f has the greater value.

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Curriculum context

Course: Math I
Standard: F-IF.9
Category: Functions
Domain: Interpreting Functions
Objective: Compare two functions represented in different ways: equations, graphs, tables, or verbal descriptions.
Problem type: Compare two function values at the same input