Algebra 1 Tutorial
Interpret Function Notation
Use function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context.
Vincent goes to the gym for 30 minutes everyday. He starts a new exercise routine on a Monday and uses a function to model the amount of calories he has used, f(d), as a function of the number of days, d, he has exercised with the new routine.
Which statement represents a correct interpretation of f(d)?
To solve this problem students must understand that this represents an input of 15, d, and an output of 5,250, f(d). So after 15 days of exercising with the new routine, Vincent has used 5,250 calories.
The work and steps for this problem may vary.
Step 1: write a function using the information in the word problem.
Step 2: evaluate the function with specific values for the variable by plugging, or substituting, in the value and solving.
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