Algebra 1 Unit 2 test review

What is the graph of the line y=2x+3?

• 
• 
• 
• 

What is the slope of the line

y=-4x+2

What is the y-intercept of the line

y=-4x+4

What is the graph of the equation:

4x+8y=16

• 
• 
• 
• 

What is the equation of the line graphed?

What is the equation of the line that is graphed?

Which of the following equations are parallel to the line given? (Check ALL that apply)

 $y=\frac{1}{2}x+3$  

•  $y=\frac{1}{2}x$  

•  $y=-\frac{1}{2}x+3$  

•  $y=-2x+2$  

•  $y=\frac{1}{2}x-5$  

Which of the following equations is the equation of a line perpendicular to the one written? (Check ALL that apply).

 $y=\frac{1}{2}x+3$  

•  $y=\frac{1}{2}x-3$  

•  $y=-2x-4$  

•  $y=-\frac{1}{2}x+1$  

•  $y=-2x-5$  

What is the equation of a line that is parallel to the line shown AND goes through the point (3,1)?
Remember to use point-slope:

 $\left(y-y_1\right)=m\left(x-x_1\right)$  

What is the equation of a line that is perpendicular to the line AND goes through the point (-1,2)?

 $y=-\frac{1}{3}x+4$  
Remember: Use point-slope form
 $\left(y-y_1\right)=m\left(x-x_1\right)$