# Describe the rate of change of a line

## Interactive practice questions

Which of the following is the correct description of 'Slope'?

$\frac{\text{Horizontal rise}}{\text{Vertical run}}$Horizontal riseVertical run

A

$\frac{\text{Vertical rise}}{\text{Horizontal run}}$Vertical riseHorizontal run

B

$\frac{\text{Horizontal run}}{\text{Vertical rise}}$Horizontal runVertical rise

C

$\frac{\text{Vertical run}}{\text{Horizontal rise}}$Vertical runHorizontal rise

D

$\frac{\text{Horizontal rise}}{\text{Vertical run}}$Horizontal riseVertical run

A

$\frac{\text{Vertical rise}}{\text{Horizontal run}}$Vertical riseHorizontal run

B

$\frac{\text{Horizontal run}}{\text{Vertical rise}}$Horizontal runVertical rise

C

$\frac{\text{Vertical run}}{\text{Horizontal rise}}$Vertical runHorizontal rise

D
Easy
Less than a minute

What is the change in the horizontal distance along a line called?

What is the slope of a line?

If a line passes through the points $\left(x_1,y_1\right)$(x1,y1) and $\left(x_2,y_2\right)$(x2,y2), where $x_1\ne x_2$x1x2, what is the slope $m$m?

### Outcomes

#### 10P.LR2.01

Connect the rate of change of a linear relation to the slope of the line, and define the slope as the ratio m = rise/run