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anonymous
 5 years ago
someone help me,im so lost on this problem..write an equation of the line containing the given point and parellel to the given line.......(5,7);2x9y=4
anonymous
 5 years ago
someone help me,im so lost on this problem..write an equation of the line containing the given point and parellel to the given line.......(5,7);2x9y=4

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0parallel lines have the property that when you multiply there slope together they make (1).

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0... Pretty sure parallel lines have the same slope.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0get your equation into slopeintercept format: y=mx+b y= (2/9)x  (4/9)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0perpendicular lines have this property, i think you may be mistaken there amistre64

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0you might be right.... lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0read it right, thought it wrong :) sorry

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0then we can use: y = (2/9)x + b to figure out the line parallel with (5,7) .... i think...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, substitute into the equation to solve for b

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.05 = (2/9)(7) + b 5 = 14/9 +b 45/9 + 14/9 = b 59/9 = b .... did i mess it up yet?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0the parallel line might be... y = (2/9)x + (59/9) with a little luck :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(y0) = 2/9(x2/9) is point slope format. This is the line with slope 2/9 which intersects the point (2/9, 0). You want the line with the same slope that intersects(5,7) So your line would be (y+7) = 2/9(x5)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.02x + 9y = 59 or 2x  9y = 59 ??

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0err (y0)=2/9(x2) is the original line (intersects at (2,0) not (2/9,0)) sorry

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0recall that coordinates are written (x,y) in the two dimensional plane so the x coordinate is 5, the y coordinate is 7

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0given y=(2/9)x + b you then simply substitute into this equation using x=5; y=7, subtract 10/9 from each side to obtain b and then write the equation in full to get the final answer: y=(2/9)x(73/9)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0multiplying through by 9 we have 9y + 63 = 2x  10 > 9y = 2x  73 or 2x  9y = 73

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I still prefer point slope form for this sort of thing than slope intercept.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0...howd I get 59? and not 73?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I feel that it overcomplicates the issue to what was a very simple substitution, changing from y=mc+c to (yy0)=m(xx0)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0substituting the wrong values for x and y primarily

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0got it..... lol. I must of took the stupid pills this morning instead of the B12s :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Once you get the slope (either by slope intercept or point slope) constructing the new line using point slope is far easier than using slope intercept, since you have the point and the slope, and you don't have to take the additional step of solving for the intercept.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0simple error, making a big problem, an example of the Butterfly effect in action ;)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes but in the slope intercept method generalises more naturally to higher dimensions and you start with the equation with only one unknown which intuitively feels more achievable, especially when working with the complex plane and lots of algebra it is also asthetically [certiain that is spelt incorrectly :)] more pleasing
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