Lines in a Plane

Lines in a Plane

Watch the following Slideshow on Calculating Slope and Writing Equations from Two Points.

Lesson Objectives

• Determine the Slope from Two Points

• Write a linear Equation given Two Points

• Equations of Vertical and Horizontal Lines
  

Multiple Choice

If possible, CALCULATE the slope of a line that passes through the given points:

 $\left(1,-3\right)$    and   $\left(-1,5\right)$ 

•  $-4$  

•  $-\frac{1}{4}$  

•  $4$  

•  $\frac{1}{4}$  

• No Slope, Line is Vertical

Multiple Choice

If possible, CALCULATE the slope of a line that passes through the given points:

 $\left(-6,1\right)$    and   $\left(0,2\right)$ 

•  $-6$  

•  $-\frac{1}{6}$  

•  $6$  

•  $\frac{1}{6}$  

• No Slope, Line is Vertical

Multiple Choice

If possible, CALCULATE the slope of a line that passes through the given points:

 $\left(-9,4\right)$    and   $\left(-2,4\right)$ 

•  $\frac{8}{7}$  

•  $0$  

•  $7$  

•  $\frac{8}{11}$  

• No Slope, Line is Vertical

Multiple Choice

If possible, CALCULATE the slope of a line that passes through the given points:

 $\left(3,-6\right)$    and   $\left(3,4\right)$ 

•  $0$  

•  $9$  

•  $3$  

•  $-3$  

• No Slope, Line is Vertical

Multiple Choice

Write the Equation of the line that passes through the given points:

 $\left(1,-3\right)$    and   $\left(-1,5\right)$ 

•  $y=-4x+1$  
  

•  $y=4x-1$  
  

•  $y=-\frac{1}{4}x+1$  
  

•  $y=-\frac{1}{4}x-1$  
  

Multiple Choice

Write the Equation of the line that passes through the given points:

 $\left(-6,1\right)$    and   $\left(0,2\right)$ 

•  $y=\frac{1}{6}x+2$  
  

•  $y=6x+2$  
  

•  $y=-\frac{1}{6}x+2$  
  

•  $y=-6x+2$  
  

Multiple Choice

Write the Equation of the line that passes through the given points:

 $\left(-\ 9,4\right)$    and   $\left(-2,4\right)$ 

•  $y=4$  
  

•  $y=7x+2$  
  

•  $x=4$  
  

•  $y=0$  
  

Multiple Choice

Write the Equation of the line that passes through the given points:

 $\left(3,-6\right)$    and   $\left(3,4\right)$ 

•  $y=10$  
  

•  $x=3$  
  

•  $x=10$  
  

•  $y=10x-3$  
  

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