Slope and Writing Equations

Front

Back

The slope (m) represents the rate of change of y with respect to x.

Front

Back

The y-intercept, which is the value of y when x = 0.

Front

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

Back

Front

What is the equation of a line with a slope of 2 and a y-intercept of -3?

Back

Front

What does a positive slope indicate about a line?

Back

It indicates that as x increases, y also increases.

Front

What does a negative slope indicate about a line?

Back

It indicates that as x increases, y decreases.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

How can you determine if a line is increasing or decreasing from its equation?

Back

If the slope (m) is positive, the line is increasing; if negative, it is decreasing.

Front

Back

The y-intercept is 5.