Produce a Rule for the Function Whose Graph Is Shown

question 286

Multiple Choice

Produce a rule for the function whose graph is shown.
-A math tutor makes $15.00 per hour in the tutoring lab at her school. During final exam week, she earns overtime at $22.50 per hour for the work exceeding her normal 40-hr work week. Which
Graph best depicts her total salary for the week as a function of the number of hours worked?

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Definitions:

Variables

Elements, features, or factors that are likely to change or vary within the context of a mathematical function or statistical experiment.

Predict

To declare or indicate in advance; especially, to foretell on the basis of observation, experience, or scientific reason.

Confidence

The degree to which one can feel assured about an estimate, prediction, or result, often quantified in statistical analysis as a confidence interval.

Winnings

The amount of money or prizes won in a game, lottery, or other competition.