Linear Equations & Parallel and Perpendicular Lines

The slope - intercept form of a line is ___________________.

• y = mx + b

• y - y1 = m(x - x1)

• Ax + By = C

• (y2 - y1) / (x2 - x1)

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

The point - slope form of a line is

• y = mx + b

• y - y1 = m (x - x1)

• Ax + By = C

• (y2 - y1) / (x2 - x1)

The slope formula is

• y = mx + b

• y - y1 = m (x - x1)

• Ax + By = C

• (y2 - y1) / (x2 - x1)

Tags

CCSS.8.EE.B.5

Find the slope given the line in the coordinate plane.

• $\frac{1}{2}$

• $-2$

• $2$

• $-\frac{1}{2}$

Tags

CCSS.8.EE.B.5

Find the slope and y - intercept of the following line:  $y\ =\ -9x\ +\ 4$  

•  $m\ =\ 9x;\ b\ =\ 4$  

•  $m\ =\ -9x;\ b\ =\ 4$  

•  $m\ =\ -9;\ b\ =\ 4$  

•  $m\ =\ 9;\ b\ =\ -4$  

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Find the slope and y-intercept of the following line:  $y\ =\ \frac{1}{8}x\ \ -\ 2$  

•  $m\ =\ \frac{1}{8};\ b\ =\ -2$  

•  $m\ =\ \frac{1}{8}x;\ b\ =\ -\ 2$  

•  $m\ =\ -8;\ b\ =\ -2$  

•  $m\ =\ 8;\ b\ =\ 2$  

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Find the slope and y-intercept of the following line $4x\ -\ 2y\ =22$  

•  $m=4;\ b\ =\ 22$  

•  $m=2;\ b=-11$  

•  $m\ =-4;\ b=22$  

•  $m=-2;\ b=-11$  

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Find the slope of the line through the given points:  $\left(-5,\ -5\right)\ and\ \left(-3,\ 8\right)$  

•  $\frac{3}{8}$  

•  $\frac{13}{2}$  

•  $\frac{8}{3}$  

•  $\frac{2}{13}$  

Tags

CCSS.8.EE.B.5

Find the slope of the line through the given points:  $\left(2,\ -8\right)\ and\ \left(4,\ -16\right)$  

•  $4$  

•  $\frac{1}{4}$  

•  $\frac{-1}{4}$  

•  $-4$  

Tags

CCSS.8.EE.B.5

Find the slope of the line perpendicular to the given line: $4x\ -\ 2y\ =\ 6$  

•  $m=4$  

•  $m\ =\frac{1}{4}$  

•  $m\ =\ \frac{-1}{2}$  

•  $m\ =\ -2$  

Tags

CCSS.8.EE.B.5