Slope-Intercept Form

Front

What does 'b' represent in the equation y=mx+b?

Back

y-intercept

Front

What is the definition of slope?

Back

Slope is the ratio of the rise (vertical change) to the run (horizontal change) between two points on a line.

Front

What is the formula for slope?

Back

Slope (m) = \frac{rise}{run}

Front

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

Back

Slope (m) = \frac{y2 - y1}{x2 - x1}

Front

What is the slope of the line represented by the equation y=2x+5?

Back

Slope (m) = 2

Front

How would you write the equation with a slope of 1 and a y-intercept of 4?

Back

y = 1x + 4 or y = x + 4

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that the line rises from left to right.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that the line falls from left to right.

Front

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

Back

A slope of 0 means the line is horizontal.

Front

If the slope of a line is undefined, what does that mean?

Back

An undefined slope means the line is vertical.