Question

slope and rate of change independent practice
name
date
1 - 6. complete each blank with the letter of the correct vocabulary term from the right.

1. the slope of a vertical line will always be undefined.
2. a graph with a neg slope decreases from left to right.
3. the vertical change on a graph is described as the
4. the horizontal change on a graph is described as the
5. the slope of a horizontal line will always be
6. a graph with a slope increases from left to right.

use the bank of answer choices below to check y
a. positive
b. undefined
c. run
d. zero
e. negative
f. rise

Explanation:

1. The slope of a vertical line is undefined because the formula for slope is $\frac{\text{rise}}{\text{run}}$, and for a vertical line, the run (change in x - value) is 0, and division by 0 is undefined.
2. A graph with a negative slope decreases from left - to - right.
3. The vertical change on a graph is described as the rise.
4. The horizontal change on a graph is described as the run.
5. The slope of a horizontal line is zero because there is no vertical change (rise = 0), and slope = $\frac{\text{rise}}{\text{run}}$, so slope = 0 when rise = 0.
6. A graph with a positive slope increases from left - to - right.

Answer:

1. B. Undefined
2. E. Negative
3. F. Rise
4. C. Run
5. D. Zero
6. A. Positive