this pair of points lie on a line with the given slope. find y.
1) (-4,y), (2,4y) and the slope is 6
how would you solve this??
2006-10-25 11:02:20 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Slope = rise/run
6 = (4y - y)/(2 -(-4))
6 = 3y/6
36 = 3y
12 = y
2006-10-25 11:12:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Slope is upward thrust over run. a 0 slope says there is 0 upward thrust. A line that has the comparable x's has diverse y's which implise an advance! THAT RHYMES! so as that ought to be no slope. No slope because of the fact it has 0 run meaning that's a variety divided by way of 0. no longer a variety hence no slope.
2016-12-08 21:15:36 · answer #2 · answered by ricaurte 4 · 0⤊ 0⤋
Slope is the relationship of rise over run or change in y over change in x. In this case, you know that the slope is 6. So, (4y - y)/(2-(-4)) = 6. From here, you get
3y/6 = 6, 3y = 36, y = 12.
2006-10-25 11:10:06 · answer #3 · answered by iuneedscoachknight 4 · 0⤊ 0⤋
Slope is defined as the change in y divided by the change in x.
6 = (4y - y)/(2 - (-4)) = 3y / 6 = y / 2
6 = y / 2
y = 12
2006-10-25 11:13:50 · answer #4 · answered by RMP 1 · 0⤊ 0⤋
y=12
2006-10-25 11:26:48 · answer #5 · answered by logowatch 1 · 0⤊ 0⤋
It is a linear equation. The slope of a linear equation is the change in y over the change in x, so:
6 = (y - 4y) / (-4 - 2)
6 = (-3y) / (-6)
6 = y / 2
y = 2 * 6
y = 12
2006-10-25 11:17:00 · answer #6 · answered by 15fsg546rge1rrheljh45hjr90459ty3 3 · 0⤊ 0⤋
Use the formula, the change in y divided by the change in x=slope
(4y-y)/2- -4)=6
3y/6=6 multiply both sides by 6
3y=36 divide by 3
y=12
the points are (-4,12) , (2.48)
2006-10-25 11:38:09 · answer #7 · answered by mom 7 · 0⤊ 0⤋
Slope is (y2 - y1)/(x2 - x1)
Set 6 = to the slope with the points plugged in and solve for y.
6 = (4y - y)/(2 - -4)
6 = 3y/6
36 = 3y
y = 12
There you have it! ;)
2006-10-25 11:10:33 · answer #8 · answered by teh_popezorz 3 · 0⤊ 0⤋
slope is change in y over change in x
change in y is 4y - y or 3y
change in x is 2--4 or 6
so slope is 3y/6 and that equals 6
so 3y/6 = 6
times both sides by 6 and get 3y = 36
divide both sides by 3
so y = 12
2006-10-25 11:09:41 · answer #9 · answered by dla68 4 · 0⤊ 0⤋
The eq'n for a line is y=mx+b
m=slope
b=y-intercept.
You don't know b, but if you sub in one of the points, you can find it. Then, once you have b, sub in either point and solve for y.
2006-10-25 11:08:23 · answer #10 · answered by Anonymous · 0⤊ 0⤋