Ch 4 Review - Graphing & Writing Linear Equations

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

What does the letter 'm' represent in the equation y = mx + b?

Back

The letter 'm' represents the slope of the line.

Front

What does the letter 'b' represent in the equation y = mx + b?

Back

The letter 'b' represents the y-intercept of the line.

Front

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

Back

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

Front

What is the x-intercept of the equation 3x + 8y = 24?

Back

The x-intercept is (8, 0).

Front

What is the slope of the line represented by the equation y = -x + 3?

Back

The slope of the line is -1.

Front

How do you graph the equation y = 3x + 6?

Back

Start at the y-intercept (0, 6) and use the slope (3) to find another point.

Front

What is the meaning of a positive slope in a linear equation?

Back

A positive slope indicates that as x increases, y also increases.

Front

What is the meaning of a negative slope in a linear equation?

Back

A negative slope indicates that as x increases, y decreases.

Front

What is the x-intercept of the line represented by the equation x = -1?

Back

The x-intercept is (-1, 0).