Solving by Parallel Lines

Solve for  y.

• y = 20

• y = 120

• y = 60

• y = 10

Angle 1 = 27^o
Find the measure of angle 4

• 27^o

• 153^o

• 63^o

• 90^o

Find the value of x.

A pair of parallel lines is cut by a transversal. What are the measures of the two marked angles?

• 40 and 40

• 65 and 115

• 40 and 140

• 75 and 105

• -4.5

• 4.5

• 1

• 0

If a system of equations has no solution, what does the graph look like? 

• intersecting lines

• parallel lines

• skew lines

• intersecting lines

Parallel Lines never intersect because...

• they have the same slopes. 

• they have the same y-intercept.

• they have different slopes.

• they have different y-intercepts. 

• a
• b
• c
• d

• a
• b
• c
• d

Lisa and Tammy are selling items at the craft show.  Which might be a reasonable solution from the graph showing the number of items sold when they both have earned the same amount?

• (1, 12)

• (3, 19)

• (5, 25)

• (0, 10)