Are the graphs of the lines in the pair parallel? Explain.
y = 6x + 9
27x – 3y = –81

A. No, since the slopes are different.

B. No, since the y-intercepts are different.

C. Yes, since the slopes are the same and the y-intercepts are the same.

D. Yes, since the slopes are the same and the y-intercepts are different.

Question

Are the graphs of the lines in the pair parallel? Explain.
 y = 6x + 9
 27x – 3y = –81

A. No, since the slopes are different.

B. No, since the y-intercepts are different.

C. Yes, since the slopes are the same and the y-intercepts are the same.

D. Yes, since the slopes are the same and the y-intercepts are different.

anonymous · Answer

27x-3y=-81
-27x     -27x
-3y=-81-27x
/-3  /-3 /-3
y=27+9x 
y=9x+27

anonymous · Answer

both the slopes and y intercepts are different so we can conclude it is neither c nor d

anonymous · Answer

if two lines have the same y intercept they can not be parallel because that would mean they are crossing each other

anonymous · Answer

the slopes are the same however and the y intercepts are different, they are parallel

anonymous · Answer

https://www.desmos.com/calculator

anonymous · Answer

try typing in your equation here next time to see