Do Now: Slope Review

Front

What type of slope is represented by a horizontal line?

Back

Zero slope

Front

What is the slope formula?

Back

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

Front

Find the slope given the points (-2,-9) and (-1,-3).

Back

6

Front

What kind of line is perpendicular to a horizontal line?

Back

Vertical line

Front

What type of slope is represented by a vertical line?

Back

Undefined slope

Front

What does a positive slope indicate about a line?

Back

The line rises from left to right.

Front

What does a negative slope indicate about a line?

Back

The line falls from left to right.

Front

What is the slope of a line that is perfectly vertical?

Back

Undefined

Front

What is the slope of a line that is perfectly horizontal?

Back

Zero

Front

If a line has a slope of 4, what does this mean?

Back

For every 1 unit increase in x, y increases by 4 units.