Function Review

Front

What does a horizontal line on a graph represent?

Back

Constant speed or not moving.

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

Which of the following pairs would make this a non-function: (10, 10), (2, 4), (6, 1), (-2, 0)?

Back

(-2, 0) because it repeats the input.

Front

What is the rate of change in the equation y=8x+6?

Back

8, which represents the slope of the line.

Front

Is the graph of y=x^2 a function?

Back

Yes, because each x-value has one y-value.

Front

What does the slope of a line indicate?

Back

The rate of change of y with respect to x.

Front

What does a vertical line test determine?

Back

If a graph represents a function.

Front

What is the y-intercept in the equation y=3x+2?

Back

2, the point where the line crosses the y-axis.

Front

What does it mean if a graph is increasing?

Back

The y-values are getting larger as the x-values increase.

Front

What is the difference between linear and non-linear functions?

Back

Linear functions create straight lines; non-linear functions create curves.