I really need help with my geometry hw.. answer quickly!!!!
2006-12-17 09:20:01 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
5y = -4x + 50
y = -4/5x + 10
slope = -4/5
2006-12-17 09:22:34 · answer #1 · answered by Jim Burnell 6 · 0⤊ 0⤋
First: solve for "y" and make sure "y" is on the left side of the equation: subtract 4x from both sides:
4x - 4x + 5y = 50 - 4x
5y = - 4x + 50
divide 5 by everything:
5y/5 = - 4x/5 + 50/5
y = - 4x/5 + 10
Second: the slope is the number/fraction beside the "x" variable:
slope = - 4/5
2006-12-17 18:51:59 · answer #2 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
4x+5y=50
You just need to write it out as a linear equation by putting 'y' on one side of the equation by it's self. Once you've done that, then you automatically know that the number next to 'x' is your slope.
Using the equation: y=mx+b
1st subtract 4x from both sides
4x+5x=50
-4x -4x
2nd divide EVERYTHING on both
sides by five
5y=-4x+50
/5 /5 /5
Your slope is the fraction next to
the x variable! -4/5
x=-4/5x+10
I hope this helped!
2006-12-17 17:44:53 · answer #3 · answered by Anne 1 · 0⤊ 0⤋
1) subtract 4x from each side
5y = -4x+50
2) divide each side by 5
y = -4/5x + 10
so the slope is -4/5
2006-12-17 17:36:17 · answer #4 · answered by Gardenia 6 · 0⤊ 0⤋
5y=-4x+50
y=-4/5x+10
slope=-4/5
2006-12-17 17:23:41 · answer #5 · answered by abcde12345 4 · 0⤊ 0⤋
uhm, 50 divided by 5y = 10, so m=10.
I think.
2006-12-17 17:26:18 · answer #6 · answered by Anonymous · 0⤊ 2⤋
5y = -4x +50
y = -0.8x +10 i.e. slope is -0.8
2006-12-17 17:24:35 · answer #7 · answered by Renaud 3 · 0⤊ 1⤋