Co-ordinate Geometry Slope Revision Quiz

What is the correct formula for the slope of a line?

• $Slope\ =\ \frac{y_{2\ }-\ y_1}{x_{2\ }-\ x_1}$

• $Slope\ =\ \frac{x_{2\ }-\ x_1}{y_{2\ }-\ y_1}$

• $Slope\ =\ \frac{x_{2\ }-\ y_2}{x_{1\ }-\ y_1}$

• $Slope\ =\ \frac{y_{2\ }+\ x_1}{x_{2\ }+\ y_1}$

Calculate the slope of this line

•  $m\ =\ -2$  
  

•  $m\ =\ 1$  
  

•  $m\ =\ \frac{1}{3}$  

• m =  $\frac{1}{2}$  

Calculate the slope of this line

• $m\ =\ -2$
  

• $m\ =\ -1$
  

• $m\ =\ 3$

• m = $1$

Which line has a positive slope?

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Which line has a negative slope?

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Which line has a slope equal to 0 ?

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Which line has a slope that is undefined ?

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In the formula

 $y\ =\ mx\ +c$   what does the m stand for?

• m = slope

• m = y-intercept

• m = midpoint

• m = x-intercept

What is the slope of the line

y = 2x - 3?

• 2

• -3

• 3

• 2x

What is the slope of the line

y = 4x + 10?

• 4

• -3

• 3

• 2x