Old Ch. 3 - Slope/Slope-intercept Form

Front

What is the slope in the equation: y = 4x + 2?

Back

The slope is 4.

Front

What is the definition of slope?

Back

Slope is the measure of the steepness of a line, calculated as the ratio of the rise (change in y) to the run (change in x).

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 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

What is the y-intercept in the equation y = -2x?

Back

The y-intercept is 0.

Front

What does the slope-intercept form of a line look like?

Back

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

Front

If the slope of a line is 3, what does this mean?

Back

This means that for every 1 unit increase in x, y increases by 3 units.

Front

What is the formula for calculating slope?

Back

The formula for slope is m = \frac{change\ in\ y}{change\ in\ x}.