Linear Part of review for QUIZ FRIDAY

Write an equation of a line that goes through (4, 1) and has a slope of 2.

• $y=2x+4$

• $y=\frac{1}{4}x+2$

• $y-1=2\left(x-4\right)$

• $y+4=2\left(x+1\right)$

Write an equation of the line that has a slope of  $-\frac{2}{3}$  and goes through the point (5, -4).

•  $y-4\ =\ -\frac{2}{3}\left(x+5\right)$  

•  $y+4=-\frac{2}{3}\left(x-5\right)$  

•  $y-5=-\frac{2}{3}\left(x+4\right)$  

•  $y+5=-\frac{2}{3}\left(x-4\right)$  

Which is the equation of the line with y-intercept -2 and slope 6.

• y = -2x + 6
• y = 3x
• y = -2x - 6
• y = 6x - 2

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Write equation of the line containing (2,6) and (3,1)

• y = 5x - 14
• y = -5x - 14
• y = -5x + 16
• y = -5x + 6

What is the slope of a vertical line?

• 0
• undefined

Tags

CCSS.8.EE.B.5

What is the slope of a horizontal line?

• 0
• undefined

Tags

CCSS.8.EE.B.5

Vertical or horizontal?
x = 10

• vertical 
• horizontal
• neither

 Identify the slope-intercept equation:

• y = 2x - 2
• y = -2x + 2
• y = -2x + 4
• y = 2x + 4

What is the slope of a line with the equation                    3x - 5y = 7
Really write this on your paper and work it out!

• 5/3
• -5/3
• 3/5
• -3/5

Tags

CCSS.8.EE.B.5

Two lines that are parallel will have ...

• Slope that is opposite reciprocals

• No slope

• Slope that is the same

• none of the above

Tags

CCSS.8.EE.B.6