Linear Functions (A) Review

Front

In the equation, y = mx + b, the letter b is the ___________.

Back

y-intercept

Front

Is this graph linear or non-linear?

Back

Linear

Front

Find the slope of the line represented by the equation y = 4x + 2.

Back

m = 4

Front

How many solutions does the equation 2x + 3 = 2x + 5 have?

Back

No solution

Front

The first hour flying the plane was at an altitude of 6000 feet. At the third hour the plane was at an altitude of 8000 feet. What is the rate of change?

Back

1000 ft per hour

Front

What does the slope (m) represent in a linear function?

Back

The rate of change of y with respect to x.

Front

What is the standard form of a linear equation?

Back

Ax + By = C, where A, B, and C are constants.

Front

What is the x-intercept in the equation y = 3x + 6?

Back

-2 (set y=0 and solve for x).

Front

If a line has a slope of 0, what type of line is it?

Back

A horizontal line.

Front

What is the slope of a vertical line?

Back

Undefined.