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anonymous
 4 years ago
ok i need a lil clarificationon this problem...the answer i got was marked wrong on my test but i cant seem to come up with the answer they said was correct. heres the question...
Write an equation of the line containing the given point and parallel to the given line.
(2,8) ; 2x7y=3
anonymous
 4 years ago
ok i need a lil clarificationon this problem...the answer i got was marked wrong on my test but i cant seem to come up with the answer they said was correct. heres the question... Write an equation of the line containing the given point and parallel to the given line. (2,8) ; 2x7y=3

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327791230103:dwfirst i solved the equation for y to put it in slope intercept form

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i know that for my new equation for a parallel line the slope stays the same so i got y=(2/7)x+b then i inserted the point values into the equation for x and y and got 14=b then i plugged this b value into the equation to give me y=(2/7)x14 but the test said the "correct" answer was y= (2/7)x(60/7) so can someone please tell me where i went wrong?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0rearranging 7y = 2x  3 y = (2/7) x  3/7 so the slope of ur line will be 2/7 it passes thru point (2,8) so y (8) = 2/7 (x  2) y + 8 = 2/7(x2) multiply thru by 7 7y + 56 = 2x  4 7y = 2x  60

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0this can also be written as y= (2/7)x(60/7)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0you used y = (2/7) x + b 8 = (2/7)*2 + b b = 8  4/7 =  60/7

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the other equation of straight line which i used is yy1 = m(xx1) where m = slope and (x1,y1) is the given point

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i see what i did wrong now. i divided the 8 by 4/7 instead of subtracting it, i must have been having a blonde moment...lol. thank for the help!

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0blonde moment lol  i get similar moments  in my case they are 'senior moments'
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