I learned how to do this on Friday but I completely forget. >____<;
The question says: Determine if each equation has the same slope as the equation y = 2x - 4.
One of the equations is y = -2x + 3.
I don't want to just know the answer.. I need to know how to do the process, so I can show my work.
Thank you! C:
2007-10-14 13:49:45 · 8 answers · asked by Haley 2 in Education & Reference ➔ Homework Help
The equation of a line is y=mx+b where m=slope and b=y-intercept. Because the slopes of your lines are 2 and -2, they have negative slopes, NOT equal slopes.
2007-10-14 14:06:08 · answer #1 · answered by CC 3 · 0⤊ 0⤋
I'm in Algebra 2, and we just reviewed this also.
The slope is the number, or fraction, before the "x". So if the equation is y = -2x+3, then the slope is -2, so if the other equation is y = 4x-3, the slopes are different, because 4 does not equal -2; but if the equation is y = -2x+5, then they have the same slope (-2).
2007-10-14 13:56:51 · answer #2 · answered by pete_op11 1 · 0⤊ 0⤋
Hey, used to have problemss with this too but basically if you have the same number before the x then they have the same slope. So -2x does not have the same slope as 2x because one slope is going down and the other slope is going up... example of sample slope.....
by the way it doesn't matter what the b is in Y=MX+B
so... lets say we have
y=3x+7
y=3x+4
these would have the same slope....
hope i helped:)
2007-10-14 13:58:46 · answer #3 · answered by lisa 1 · 0⤊ 0⤋
The sign is part of the slope. m=2 is not the same as m=-2.
2007-10-14 13:55:55 · answer #4 · answered by marystoy_2000 5 · 0⤊ 0⤋
ok... a million) lines are parallel while they have the comparable slope. lines are perpendicular while they have a unfavorable reciprical slope....ex...the unfavorable reciprical o f 3/2 is -2/3 2)use the technique to #a million 3)use the prosess of #a million 4) it relatively is a function while each and each area fee(x) has exactley one selection fee(y). 5)vertical line attempt is once you draw vertical lines on the graph. if greater advantageous than one element is on each and each line, it relatively isn't any longer a function.
2016-11-08 08:19:05 · answer #5 · answered by purifory 4 · 0⤊ 0⤋
the slope is the constant(constant means number) that is before the variable(the variable is x in this case)
if those are the same, then you know they are the same. if that makes sense
Hope that helps ( :
the answer is no, by the way... -2 is different than 2 ( i know, obvious, right?)
2007-10-14 13:55:48 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Well, yes, they do have the same slope, because the equation is y=mx+b.
"m" is the slope. If they are the same, they have the same slope.
2007-10-14 13:53:34 · answer #7 · answered by Cheaze 3 · 0⤊ 1⤋
put a couple points in for x and see what y is
y=2x-4
x1=10 then y1=16
x2=5 then y2=6
slope = (y1-y2)/(x1-x2)
then do the same for the other equation and see if they are the same.
Good luck.
2007-10-14 13:56:18 · answer #8 · answered by peachie 2 · 0⤊ 0⤋