Slope of a Line

Given 2 points on a line are  $\left(x_1,\ y_1\right)$ and  $\left(x_2,\ y_2\right)$ , the slope of this line is equal to:

•  $\frac{\left(x_1-y_1\right)}{\left(x_2-y_2\right)}$  

•  $\frac{\left(x_1-x_2\right)}{\left(y_1-y_2\right)}$  

•  $\frac{\left(y_1-y_2\right)}{\left(x_1-x_2\right)}$  

•  $\frac{\left(y_1-x_1\right)}{\left(y_2-x_2\right)}$  

Tags

CCSS.8.EE.B.5

Slope can be described as:

• $\frac{run}{rise}$

• $\frac{rise}{run}$

Tags

CCSS.8.EE.B.5

The slope of a line can be described as:

• the difference of the x-coordinates of 2 points on the line divided by the difference of the y-coordinates of the 2 points on the line

• the sum of the x-coordinates of 2 points on the line divided by the sum of the y-coordinates of the 2 points on the line

• the difference of the y-coordinates of 2 points on the line divided by the difference of the x-coordinates of the 2 points on the line

• the sum of the y-coordinates of 2 points on the line divided by the sum of the x-coordinates of the 2 points on the line

Tags

CCSS.8.EE.B.5

The slope of any horizontal line:

• is always undefined

• is always 0

• depends on the location of the line

• is always positive

• is always negative

Tags

CCSS.8.EE.B.5

The slope of any vertical line:

• is always undefined

• is always 0

• depends on the location of the line

• is always positive

• is always negative

Tags

CCSS.8.EE.B.5

Given that the slope formula is:  
 $m=\frac{y_1-y_2}{x_1-x_2}$  

Find the slope of the line that passes through the 2 points  $\left(2,8\right)$  and  $\left(0,0\right)$ .

•  $m=0$  

•  $m=8$  

•  $m=4$  

•  $m=-4$  

•  $m=\frac{1}{4}$  

Tags

CCSS.8.EE.B.5

Find the slope of the line that passes through the 2 points  $\left(0,0\right)$  and  $\left(-2,-6\right)$ .

Use the slope formula:  
 $m=\frac{y_1-y_2}{x_1-x_2}$  

•  $m=-3$  

•  $m=3$  

•  $m=\frac{1}{3}$  

•  $m=-\frac{1}{3}$  

•  $m=0$  

Tags

CCSS.8.EE.B.5

If a slanted line is uphill from left to right, then the slope of that line is:

• 0

• positive

• negative

• undefined

Tags

CCSS.8.EE.B.5

If a slanted line is downhill from left to right, then the slope of that line is:

• 0

• positive

• negative

• undefined

Tags

CCSS.8.EE.B.5