Linear Equations and Parallel and Perpendicular

Write equation in standard form of the line that connects the points (0, -5) and (4, 3)

• 2x-y=5

• 1/2x-y=5

• 2x+5y=1

• 2x+y=-5

3x - 4y = 18

32 + 6x = 8y

Which word best describes the relationship between these lines?

• parallel

• perpendicular

• coinciding(same line)

• intersecting(neither)

Write an equation that is parallel to y = 3x + 5 and going thru (2,5).

• 1 = 3x + y

• y = 3x - 1

• 1 = -3x -y

• y = -3x + 1

Slopes of parallel lines are...

• opposite reciprocals.
• opposites.
• identical.
• always 7.

Tags

CCSS.8.EE.B.5

Slopes of perpendicular lines are...

• negative reciprocals.

• opposites.

• identical.

• always 7.

Tags

CCSS.8.EE.B.6

Write an equation for a line that is perpendicular to the graph shown and passes through the point (4,-1)

• y = 2x + 3

• y = 1/2x - 3

• y = 1/2x - 1

• y = -2x + 1

Write the equation of a line parallel to the one pictured through the point (3,1) in point slope form.

• y-1=1/2(x-3)
• y+1=1/2(x+3)
• y-1=-1/2(x-1)
• y+1=-1/2(x+3)

What slope is perpendicular to:  
m = 3

• -3
• -1/3
• 1/3
• 3

Tags

CCSS.8.EE.B.6

Write the slope-intercept form of the equation with the given point and slope.

(2, 5) and m= 1/2

• y=1/2x+4

• y=-1/2x-4

• y=4x-1/2