Parallel Lines

Question

Which equation describes the line that passes through the point (6,2) and is parallel to the graph of y=-5x-4

 

a. y=5x-16

b. y=-5x+32

c. y=-5x+16

d. y=5x-32

 

Answer 1

Parallel lines have the same slope,  so you can eliminate a and d

 

Now plug in the point (6,2) to the other two equations to find out which has that point.

 

B                              

y = -5 x + 32

2 = -5(6) + 32

2 = -30 + 32

2 = 2

YES 

 

C

y = -5 x + 16

2 = -5(6) + 16

2 = -30 + 16

2 = -14

NO

 

THE ANSWER IS B