slope of lines

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is zero.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

How is slope defined in mathematics?

Back

Slope is defined as the ratio of the rise (change in y) to the run (change in x) between two points on a line.

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 a line that goes down from left to right?

Back

The slope of a line that goes down from left to right is negative.

Front

What is the slope of a line that goes up from left to right?

Back

The slope of a line that goes up from left to right is positive.

Front

If a line has a slope of zero, what can be said about its orientation?

Back

If a line has a slope of zero, it is horizontal.

Front

If a line has an undefined slope, what can be said about its orientation?

Back

If a line has an undefined slope, it is vertical.

Front

How do you calculate the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).