8.AT.D.10: Construct and interpret a linear function to model a relationship between two quantities. a. Given two input-output pairs, a graph, a table, or a description of a relationship, determine the rate of change and initial value and write the linear equation that models the situation. b. Interpret the rate of change and initial value in the context of the problem.

Construct and interpret a linear function to model a relationship between two quantities. a. Given two input-output pairs, a graph, a table, or a description of a relationship, determine the rate of change and initial value and write the linear equation that models the situation. b. Interpret the rate of change and initial value in the context of the problem.

Example Problems

What is the slope of

y = x + 8

?

What is the slope of

y = 9 - x

?

What is the slope of

y = 4x + 9

?

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