CCSS.Math.Content.HSF-IF.C.7e

MathGrades 9–12Interpreting Functions

The Standard

Graph exponential and logarithmic functions, showing intercepts and end behavior, and trigonometric functions, showing period, midline, and amplitude.

Common Core State Standards for Mathematics · Analyze functions using different representations

Teacher's field guide

What This Standard Means

What Students Need to Do

Students make accurate graphs of exponential, logarithmic, and trigonometric equations. They locate intercepts, describe end behavior, and identify amplitude, midline, and period when those features apply.

What Mastery Looks Like

A student can graph each function family with accurate key points and a useful scale. They calculate features from an equation and use those features to check the graph.

Common Misconceptions

Students may treat logarithmic and exponential graphs as the same shape instead of reflections across y = x. They may confuse an asymptote with an intercept or draw a curve crossing it. For trigonometric graphs, they may use 2π as every period, call the x-axis the midline, or report a negative amplitude.

How to Assess It

Exit ticket: Graph y = 2^(x − 1) − 2, y = log₂(x + 1), and y = 3cos(2x) − 1 on separate grids. For the first two, label any intercepts and describe end behavior. For the third, label amplitude, midline, and period.

Lesson moves

Ways to Teach It

  1. Have pairs plot y = 2^x and y = log₂x on transparent grids, then reflect one grid across y = x and compare.

  2. Give two sinusoidal graphs and ask, “How do the midline, amplitude, and period prove these graphs are different?”

  3. Run a timed card sort matching equations, graphs, intercepts, asymptotes, end behavior, periods, midlines, and amplitudes.

  4. Match bacteria growth, pH, and Ferris wheel data to exponential, logarithmic, and sinusoidal graphs, then justify each match.

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Printable HSF-IF.C.7e Worksheet

Preview of the CCSS.Math.Content.HSF-IF.C.7e printable worksheet

A ready-to-print activity worksheet aligned to CCSS.Math.Content.HSF-IF.C.7e, with an answer key for the teacher on its own page. No account needed.

PDF, US Letter, prints cleanly in black and white.

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Learning progression

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