Equations of Parallel Perpendicular Lines from a Graph

y = 3x +2
y = 3x - 3
These lines are...

• Parallel

• Perpendicular

• Neither

• The same line

y = -2/3x + 2
y = 3/2x + 9
These lines are...

• Parallel

• Perpendicular

• Neither

What is the slope of a line perpendicular to the line whose equation is: -2x + y = - 7?

• -2

• 1/2

• -1/2

• 2

Which of the following lines is PARALLEL to the graph of y = -6x + 3 and goes through the point (-1,4)?

• y=1/6x +25/6

• y = 1/6x + 4

• y = -6x - 2

• y = -6x + 4

Are the two linear equations parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Mabel graphed the equations y = (1/3)x + 2 and y = 3x + 2.

These lines are​ ​ (a)   because their slopes are ​ (b)   .

• perpendicular

• intersecting at an angle that is not 90 degrees

• parallel

• reciprocals, but are not opposites

• equal

• opposites, but not reciprocals

Find a line parallel to 2x - 3y = 12 and goes through (12, 4)

y = ​ (a)   x ​ ​ (b)   (c)  

• 2/3

• -

• 4

• -2/3

• 12

• +

• 3/2

• 14

• -3/2

• 22

The slope of two parallel lines: ​ (a)  

• m1 = m2

• m1 = -(1/m2)

• m2 = -(1/m1)

Are the two linear equations parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Write the equation of the line that is PARALLEL to the graph of y = -6x + 3 and goes through the point (-1,4)?

Mathematical Equivalence

ON