Q26:
In the xy-plane, the line with equation ax + by + c = 0, where abc ≠ 0, has slope 32. What is the value of b?
(1) a = 4
(2) c = −6
OA: A
Question 4 (nov.24th)
This topic has expert replies
- jackcrystal
- Senior | Next Rank: 100 Posts
- Posts: 31
- Joined: Mon Aug 04, 2008 2:04 pm
- Thanked: 1 times
y = -(a/b)x -c
=> 32 = -a/b
I. plug value foe a and get b.
Suff
II. C has nothing to do with slop
not suff.
Hence
A
=> 32 = -a/b
I. plug value foe a and get b.
Suff
II. C has nothing to do with slop
not suff.
Hence
A
You will have to divide "C" by "B" in order to keep the original equation. Even if you were dividing C by B, you would still be able to determine what B is from -(a/b)x + c/b = x, because you're not looking for x or c, but working with slope = 32.niraj_a wrote:simple but dumb question - why wouldn't you divide c by b as well in the initial equation?