y=1/2x + 7
flip and take the reciprocal of the slope and plug in the points to find the new y-intercept
2007-05-02 13:19:35
·
answer #1
·
answered by pandurtle 6
·
1⤊
0⤋
The equation 2x + y = 5 can be rearranged into y = -2x + 5. This means that the line has slope of -2. For a slope perpendicular to this, we use the negative recipricol. This is essentialy -1/m where m is the original slope. So in this case the perpendicular slope will be -1/-2 which is 1/2.
Now the equation of the new line is:
y = 1/2x + b
You are given point (-2 , 6) which you can substitute in to find b which becomes 7.
So the equation is y = 1/2x + 7
Hope this helps!
2007-05-02 13:20:16
·
answer #2
·
answered by Brian.. 2
·
1⤊
0⤋
The given line is expressed as y = -2x + 5, so the slope is -2.
A line perpendicular to this would have a slope of 1/2.
1/2 = (y - 6) / (x + 2)
1/2(x + 2) = y - 6
1/2x + 1 = y -6
x/2 - y = -7
2007-05-02 13:18:39
·
answer #3
·
answered by TychaBrahe 7
·
1⤊
0⤋
Your equation is at present in often happening style: mx + ky = b (with ok being a relentless, m slope, and b y-intercept). In slope-intercept style, it could be y=-2x+5. (y=mx+b) To get a perpendicular line, take the damaging reciprocal. that's, multiply the slope (to that end -2) by using -a million, and turn it the different way up. So -2/a million will exchange right into a million/2. that's our new slope. perfect now, our equation is y=(a million/2)x+b. to locate b, basically plug the given coordinates into the hot equation and clean up for b. (keep in mind that b is the place the hot line intersects the y-axis. this could be a stable verify to make particular you solved for b wisely, by using graphing your new equation.) 6=(a million/2)(-2)+b 6=-a million+b b=7 Plug b returned into the equation to get your answer: y=(a million/2)x+7. Simplified it could be y=x/2 + 7.
2016-10-14 09:46:03
·
answer #4
·
answered by Anonymous
·
0⤊
0⤋
the product of the slopes of two perpendicular lines are -1.
to find the slope, take y alone and then the slope is the number in front of x:
y=-2x+5 (slope is -2)
means, the slope of the line you're looking for is 1/2.
means, the equation is y= (1/2 x) + c
since you have a point, the point will give you the value of c
x=-2 and y=6
6=-1+c
c=7
then the line is
y= (1/2 x) +7
2007-05-02 13:24:59
·
answer #5
·
answered by nelaq 4
·
1⤊
0⤋
Put the equation in slope-intercept form:
y=mx+b
Subtract 2x from both sides:
y=-2x+5
The slope is -2, but you want the reciprocal of that slope, so that slope is 1/2.
The next step is to use the point-slope form:
y-y1=m(x-x1)
y-6=1/2(x+2)
y-6=1/2x+1
y=1/2x+7
2007-05-02 13:32:43
·
answer #6
·
answered by Anonymous
·
0⤊
0⤋
(y-y1)=m(x-x1)
Put original equation in form y=mx+b
y=-2x+5
m=-2
perpendicular is the negative reciprocal of the slope
m=1/2
Plug point and new slope into point slope formula.
y-6=(1/2)(x+2)
simplify
y-6=(1/2)x+1
y=(1/2)x+7
2007-05-02 13:20:00
·
answer #7
·
answered by Your Best Fiend 6
·
1⤊
0⤋
y=1/2x+7
2007-05-02 13:20:27
·
answer #8
·
answered by theo 1
·
1⤊
0⤋