Question

Are the graphs of the lines in the pair parallel? Explain.
y = x + 8
–2x + 12y = –11

Answer 1

A. Yes, since the slopes are the same and the y-intercepts are the same.
B. No, since the y-intercepts are different.
C. Yes, since the slopes are the same and the y-intercepts are different.
D. No, since the slopes are different.

Answer 2

Rearrange the second equation as follows:
12y = 2x - 11
Then divide by 12:
y = x/6 - 11/12
What is the gradient of the last equation?

Answer 3

y = x + 8 so the slope is 1
-2x + 12y = -11
12y = -11 +2x
y = -11/12 + x/6
y = x/6 - 11/12 .... this slope is not equal with the upper one . it cant be parallel so.. D

Answer 4

b.?

Answer 5

The gradient of the last equation is 1/6. The gradient of the first equation is 1. So the correct choice is D.

Answer 6

Yeah. Just like i said be4 :)

Answer 7

mind helping me with 9 more like this?