Vocabulary: Slope/Rate of Change

Front

When counting the slope on a graph, the vertical count goes ________, and the horizontal count goes __________.

Back

on top, on bottom

Front

Rises from left to right

Back

positive slope

Front

Zero slope lines

Back

are horizontal.

Front

In the slope formula, the x-values

Back

go on bottom.

Front

In the slope formula, which values go on top?

Back

y-values

Front

What is the formula for calculating slope?

Back

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

Front

What does a negative slope indicate?

Back

The line falls from left to right.

Front

What does an undefined slope indicate?

Back

The line is vertical.

Front

What is the slope of a horizontal line?

Back

Zero.

Front

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

Back

Subtract the y-values and divide by the difference of the x-values.