a. x-4=y
b. -y=4+x
c. y=x-4
d. y=x+4
2006-10-04 03:13:47 · 9 answers · asked by cave_21man 1 in Science & Mathematics ➔ Mathematics
a. x-4=y is the answer.
2006-10-04 03:18:25 · answer #1 · answered by woof! 2 · 1⤊ 0⤋
both [a] and [c] (both are the same)
According to the pattern y=mx+b, y must be positive, but we have -y, so we multiply all the equation in one - to obtain positive y. So the equation becomes:
- [ x-y] = - [4]
-x -(-y) = -4
-x + y = -4
Now we have positive y, but the equation doesn't look like the pattern yet. In the pattern, y is on one side of the equation and mx + b (m and b can be any positive or negative numbers) are on the other side (if y is one the left side, mx+b must be on the right side and vice versa). So we just need to move -x to the right side (this will change -x to +x). Hence:
y=x-4 or x-4=y
(Note that m=1 and b= -4)
2006-10-04 12:48:32 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Solve it for y to get y = x-4.
2006-10-04 10:23:08 · answer #3 · answered by steiner1745 7 · 0⤊ 0⤋
the answers are both A and C
2006-10-05 06:39:13 · answer #4 · answered by Anurag 1 · 0⤊ 0⤋
a
2006-10-04 10:34:21 · answer #5 · answered by rwbblb46 4 · 0⤊ 1⤋
dont waste yahoo answer's space
2006-10-04 10:32:57 · answer #6 · answered by sumone^^ 3 · 0⤊ 1⤋
c
2006-10-04 10:27:18 · answer #7 · answered by Anonymous · 0⤊ 1⤋
c
2006-10-04 10:20:46 · answer #8 · answered by ChemGeek 4 · 0⤊ 1⤋
y = x - 4
C is the answer.
2006-10-04 10:21:40 · answer #9 · answered by lkraie 5 · 0⤊ 0⤋