Graphing Lines and Slope

Front

What is the formula to calculate the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1)

Front

Find the slope of the line that passes through the points (2, 4) and (6, 12).

Back

Slope = 2

Front

What does a slope of 0 indicate about a line?

Back

A slope of 0 indicates that the line is horizontal.

Front

What does an undefined slope indicate about a line?

Back

An undefined slope indicates that the line is vertical.

Front

How do you interpret a positive slope?

Back

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

Front

How do you interpret a negative slope?

Back

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

Front

What is the slope of the line represented by the equation y = 3x + 1?

Back

Slope = 3

Front

Which equation represents a line with a slope of -2?

Back

y = -2x + b (where b is any y-intercept).

Front

Find the slope of the line that passes through the points (-1, -9) and (5, -6).

Back

Slope = 1/2

Front

What is the slope of the line represented by the equation y = 1/4x + 2?

Back

Slope = 1/4