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8th Grade Math Vocabulary

Week 24

Slope

The ratio of the change in y to the change in x of a linear relationship.

Slope

Rise – The vertical change along the

y-axis of a graph.

Run – The horizontal change along the x-axis of a graph.

Slope

Function

A relationship in which exactly one output is assigned to each input.

Function

Input—Output f(x) = 2x-1

1 1

2 3

3 5

Note that output 1 is assigned to input 1, only; output 3 is assigned to input 2, only; and output 5 is assigned to input 3, only.

Nonlinear Function

A function that does not have a constant rate of change (i.e. the same slope). The graph of a nonlinear function is not a straight line.

Take a quiz on these math terms at www.RudolphAcademy.com