Find the y-intercept for
3x-4y=-12
2007-06-26 08:14:54 · 17 answers · asked by x3ldonx 1 in Science & Mathematics ➔ Mathematics
The y-intercept is where the graph crosses the y access in other words where x=0 so plugging it in you now have 3(0) -4y = -12 or -4y = -12 or y=3
2007-06-26 08:17:30 · answer #1 · answered by Jose E 1 · 1⤊ 0⤋
To find the y-intercept, you would set x to zero in the equation:
3(0) - 4y = -12 or -4y = -12.
You would then divide both sides by -4 to get the variable y by itself:
y = -12 / -4
Since the numbers are both negative, the answer will be a positive number. (12/4) = 3.
So the y-intercept is 3.
2007-06-26 15:22:37 · answer #2 · answered by durritscaitlin 2 · 0⤊ 0⤋
3
2007-06-26 15:17:24 · answer #3 · answered by miggitymaggz 5 · 0⤊ 0⤋
y=1
2007-06-26 15:18:02 · answer #4 · answered by killer boot 5 · 0⤊ 0⤋
x=8
y=3
2007-06-26 15:20:29 · answer #5 · answered by black57 5 · 0⤊ 0⤋
It has got to be 3(+3 too).
Plotting: let x=0; 3(0)-4y=-12 (Y will intercept when X is zero)
-4y = - 12
4y=12
y=3
2007-06-26 15:26:08 · answer #6 · answered by Brett T 3 · 0⤊ 0⤋
3x-4y=-12
-4y=-12-3x
y=3+3/4x
the y intercept = 3
2007-06-26 15:19:51 · answer #7 · answered by Anonymous · 0⤊ 0⤋
4y=-12-3x
divide by 4
y=-3-x
so y = -3
=)
2007-06-26 15:19:15 · answer #8 · answered by Chelsea S 2 · 0⤊ 0⤋
y= 0
2007-06-26 15:17:34 · answer #9 · answered by Janey from Louisiana 2 · 0⤊ 0⤋
Y intercept
x = 0
3x - 4y = - 12
3(0) - 4y = - 12
0 - 4y = - 12
- 4y = - 12
- 4y / - 4 = - 12 / - 4
y = - 12 / - 4
y = 3
The y intercept is 3
- - - - - - - -s-
2007-06-26 16:30:23 · answer #10 · answered by SAMUEL D 7 · 0⤊ 0⤋