anonymous
  • anonymous
Write an equation of the line containing the given point an parallel to the given line. (7,-6); 7x-9y=4 The equation of the the line is Y=
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
7x-9y=4 => slope = 7/9 the equation of the line will be y=mx+b -6=(7/9)*7+b and then solve for b
anonymous
  • anonymous
im still confuse with this..
anonymous
  • anonymous
which step?

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anonymous
  • anonymous
the line is parallel to the given line, so it has the same slope
anonymous
  • anonymous
how would i write the equation for Y=
anonymous
  • anonymous
hi, first before we get the parallel line equation,: from this equation 7x-9y=4 what is y=?
anonymous
  • anonymous
y= 7/9x-4/9
anonymous
  • anonymous
ok good with this line y= 7/9x-4/9 what is your slope m=?
anonymous
  • anonymous
hmm seems like you dont like an interaction question and answer,,... :D ok after getting the slope of this line y= 7/9x-4/9 , also get the slope of parallel to this line then form an equation of line from the point (7,-6) with that slope of parallel line.. ..
anonymous
  • anonymous
@ MauriceLong did you get it ?
anonymous
  • anonymous
the slope is 4
anonymous
  • anonymous
ok
anonymous
  • anonymous
can u help me solve this problem please
anonymous
  • anonymous
im sorry the slope of parallel line is the same m1=m2 so you can form another line using this slope m1, using the point(7,-6) and the formula y1-y=m(x-x1)
anonymous
  • anonymous
ok. i am getting a better understanding on this so far.
anonymous
  • anonymous
from y= mx + b y= 7/9x - 4/9 what is the slope m?
anonymous
  • anonymous
yesss just answer what i ask you and you will get it ... :D
anonymous
  • anonymous
try to compare the formula to the one you answered on y=7/9 x -4/9
anonymous
  • anonymous
would i have too subtract 7/9-4/9
anonymous
  • anonymous
by comparing the formula from y= mx + b y= 7/9x - 4/9 what is the slope m? we know that b=4/9, what is slope m?
anonymous
  • anonymous
no you cant subtract because 7/9 x has an x with it and the 4/9 has no x.. so they are different terms
anonymous
  • anonymous
ok
anonymous
  • anonymous
if it would be 7/9x - 4/9 x then its ok to subtract but this time they are not.. :D go ahead you can ask me more question what do you want to know
anonymous
  • anonymous
|dw:1354520274544:dw|
anonymous
  • anonymous
im having a hard time solving this problem
anonymous
  • anonymous
ok i will show you the easy way of doing the solution of it,,, :D
anonymous
  • anonymous
ok
anonymous
  • anonymous
we want to know the slope m of this particular line |dw:1354578182118:dw|
anonymous
  • anonymous
from y= mx + b y= 7/9x + - 4/9 we know that b=-4/9,, what is slope m=?
anonymous
  • anonymous
I dont know how too get the slope. Confuse.
anonymous
  • anonymous
do i subtract -4/9 too both sides
anonymous
  • anonymous
i will give you more examples if y= 3x +4... the slope of this is m=3 and b=4 for f(x)=1/3 -7 the slope of this line is m=1/3 and b=-7
anonymous
  • anonymous
so the slope is 4/9
anonymous
  • anonymous
from y= mx + b y= 7/9x + - 4/9 that is b=-4/9,, what is m?
anonymous
  • anonymous
m=7/9
anonymous
  • anonymous
yessss : correct :D
anonymous
  • anonymous
so now that you know m=7/9, we also have the point (x1,y1)=(7,-6); use that given to the formula y-y1=m(x-x1)
anonymous
  • anonymous
y-y1=7/9(x-x1)
anonymous
  • anonymous
correct but you also have to sub what is x1 and y1 (x1,y1)=(7,-6); sub thius to what you have done you are getting closer :D
anonymous
  • anonymous
7x-6y
anonymous
  • anonymous
this is what you said the answer y-y1=7/9(x-x1) all you need to do is to sub what is x1 and y1 there
anonymous
  • anonymous
(x1,y1)=(7,-6); sub this to your answer y-y1=7/9(x-x1)
anonymous
  • anonymous
if you have a point of (7,-6) your x1=7 and y1=-6... therefore this can be like this (x1,y1)=(7,-6)
anonymous
  • anonymous
therefore plug those x1 =7 and y1=-6 to your answer y-y1=7/9(x-x1)
anonymous
  • anonymous
y=7/9(x-6)
anonymous
  • anonymous
y - y1 = 7/9 ( x - x1 ) y - ____ = 7/9 (x - ______)
anonymous
  • anonymous
y-6=7/9(x-7)
anonymous
  • anonymous
the point is (7 , -6) ( x1,y1) x1=7 and y1= -6 careful on negative sign, put the negative sign on 6... you are getting closer to the correct answer
anonymous
  • anonymous
y - y1 = 7/9 ( x - x1 ) y - ____ = 7/9 (x - ______) give it more try ill tell you if you are correct :D
anonymous
  • anonymous
your answer y-6=7/9(x-7) -6 is not correct because y- -6=__?
anonymous
  • anonymous
y - y1 = 7/9 ( x - x1 ) .... y - ____ = 7/9 (x - 7) give it more try on the y, ill tell you if you are correct :D - - 6 is not= -6
anonymous
  • anonymous
y - y1 = 7/9 ( x - x1 ) y - -6 = 7/9 (x - 7) try to simplify this more

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