2007-03-10 13:35:29 · 11 answers · asked by SadToday22 3 in Education & Reference ➔ Homework Help
In order to find the slope you have to put the equation in slope - intercept form. The equation for slope - intercept form is mx + b. In order to do that you have to isolate the y, so:
3x + 4y = 12
4y = 12 - 3x
y = 3 - (3/4)x or y = -3/4x + 3 , This equation is in slope - intercept form. Your slope is - 3/4
2007-03-10 13:58:56 · answer #1 · answered by debbie_75052 4 · 0⤊ 0⤋
finding the slope of a line you always use y=mx+b
m is the slope
ok in this problem
3x+4y=12 subtract 3x from both sides
-3x -3x
you get 4y=12-3x then you will divide both sides by 4
y= 3-3/4x
you invert that and get y= -3/4x+3
ok so now using your slope formula y=mx+b
if m stands for slope your slope is -3/4
hope this helps you
2007-03-10 13:53:43 · answer #2 · answered by Anonymous · 0⤊ 0⤋
This is how i would do it:
3x+4y = 12
1. Subtract the 3x
= 4y=3x+12
2. Divide by 4
= y= 3/4x + 3
Now the equation is in slope-intercept form, so the slope is 3/4 or 3 over 4.
Hope this helps!!
2007-03-10 13:40:01 · answer #3 · answered by sportsgirl931 2 · 1⤊ 2⤋
ok, I in basic terms undergo in concepts A & B. Sorry... (A) So, you have your line in everyday type. nicely, to graph it, you pick it in slope-intercept. So upload -3x to pass it to the the main suitable option, providing you with 4y = 3x + 12. Divide by skill of four and you have y = 3/4x + 3. The slope of that line is 3/4. The slope of the perpendicular line is its detrimental reciprocal, that's -4/3. (B) to discover the element of interception, graph the two lines and discover the place they pass. wish this helped some. =]
2016-11-24 19:32:08 · answer #4 · answered by jorelus 4 · 0⤊ 0⤋
sorry sportsgirl, but u missed a small detail which affects the answer. the answer is m= -3/4
remember the slope intercept form y=mx+b
step one: get y by itself by subtracting 3x from both sides
4y= -3x + 12
step two: divide the equation through by 4
y= (-3/4)x +3
m=slope= -3/4
2007-03-10 13:45:53 · answer #5 · answered by ? 4 · 0⤊ 0⤋
3x+4y=12
slope =
y= -3/4x + 3
2007-03-10 13:42:26 · answer #6 · answered by Anonymous · 0⤊ 0⤋
y= -3\4x + 3
-3\4 is the slope
2007-03-10 13:41:15 · answer #7 · answered by Aaron C 1 · 0⤊ 0⤋
y intersibe formular: y=mx-b
3x+4y=12
4y=3x+12 divide 4 to both side
y=3/4x+3
slope =3/4
2007-03-10 14:01:52 · answer #8 · answered by OMG 3 · 0⤊ 1⤋
The answer is -3/4
2007-03-10 13:41:12 · answer #9 · answered by Sarah B 1 · 0⤊ 0⤋
y = (-3/4)x-3
2007-03-10 13:52:44 · answer #10 · answered by Virginia 2 · 0⤊ 0⤋