Test-Slope & Linear Equations

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

What is the formula to calculate the slope (m) between two points (x1, y1) and (x2, y2)?

Back

The formula is m = (y2 - y1) / (x2 - x1).

Front

What does a positive slope indicate about a line?

Back

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

Front

What does a negative slope indicate about a line?

Back

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

Front

What is the slope of the line passing through the points (2, 3) and (4, 7)?

Back

The slope is 2.

Front

What is the slope of the line passing through the points (1, 1) and (1, 5)?

Back

The slope is undefined.

Front

How do you rearrange the equation 3x + 4y = 12 to solve for y?

Back

y = -rac{3}{4}x + 3.

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 is the y-intercept of the line represented by the equation y = 2x + 3?

Back

The y-intercept is 3.

Front

If a line has a slope of 0, what does that mean?

Back

A slope of 0 means the line is horizontal.