WU 2.4C: Linear Key Features

Front

What is the x-intercept?

Back

The x-intercept is the point where a graph crosses the x-axis, represented as (x, 0).

Front

What is the y-intercept?

Back

The y-intercept is the point where a graph crosses the y-axis, represented as (0, y).

Front

How do you find the x-intercept of a linear equation?

Back

To find the x-intercept, set y = 0 in the equation and solve for x.

Front

How do you find the y-intercept of a linear equation?

Back

To find the y-intercept, set x = 0 in the equation and solve for y.

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that as x increases, y also increases, resulting in an upward slant.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that as x increases, y decreases, resulting in a downward slant.

Front

What does a slope of zero indicate?

Back

A slope of zero indicates a horizontal line, meaning y remains constant as x changes.

Front

What does an undefined slope indicate?

Back

An undefined slope indicates a vertical line, where x remains constant as y changes.

Front

What are the coordinates of the x-intercept of the line y = 2x - 4?

Back

The x-intercept is (2, 0).

Front

What are the coordinates of the y-intercept of the line y = 3x + 6?

Back

The y-intercept is (0, 6).