F-IF.1.2

Use function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context.

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Formative Assessments
Formative Assessments
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Students are asked to interpret statements that use function notation in the context of a problem.
Cell Phone Battery Life
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Students are asked to evaluate a function at a given value of the independent variable.
Evaluating a Function
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Students are asked to determine the value of a function, at an input given using function notation, by inspecting its graph.
Graphs and Functions
Virtual/Hands-on Manipulatives
Virtual/Hands-on Manipulatives
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Assessment Questions
Assessment Questions
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FSA Sample Question
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Videos of Expert Instruction
Videos of Expert Instruction
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This video describes how to find the domain and range from a word problem.
Domain and Range 1
Use Real Link and Title
Use Real Link and Title
Hook/Performance Tasks
Hook/Performance Tasks
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This simple task assesses whether students can interpret function notation. The four parts of the task provide a logical progression of exercises for advancing understanding of function notation and how to interpret it in terms of a given context.
Cell Phones
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This task requires interpreting a function in a non-standard context. While the domain and range of this function are both numbers, the way in which the function is determined is not via a formula but by a (pre-determined) sequence of coin flips. In addition, the task provides an opportunity to compute some probabilities in a discrete situation. The task could be used to segue the discussion from functions to probability, in particular the early standards in the S-CP domain.
The Random Walk
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The purpose of this task is to give students practice interpreting statements using function notation. It can be used as a diagnostic if students seem to be having trouble with function notation, for example mistakenly interpreting f(x) as the product of f and x.
Yam in the Oven