anonymous
  • anonymous
what is an equation of the line that passes through the point (-4,-1) and is parallel to and perpendicular to the line 2x+7y=14 ?
Linear Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
I NEED HELP ASAP PLEASEE
anonymous
  • anonymous
\[y=\frac{ 7x }{ 2 }+15\]
anonymous
  • anonymous
you want two different equations? one for parallell and one for perpendicular? Note: parallel has same slope, and perpendicular has negative reciprocal of slope. The primary equation in slope intercept form should be y = -2/7x + 2

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anonymous
  • anonymous
So using the equation formula. (y-y1)=m(x-x1). You plug in your points from (-4,-1) and the slope you need (see above for parallel or perpendicular). Parallel. (y+1)=-2/7(x+4) : use algebra and get x and y on left of equation. Note, the +4 and +1 are due to -(-1) and -(-4). Perpendicular. Same thing in a sense, but the slope must be the negative reciprocal of the primary equation (line). (y+1)=7/2(x+4) again, use algebra and get the x and y on left side of equation.
anonymous
  • anonymous
Therefore: Parallel: 7y+2x=-15 Perpendicular: 2y-7x=26
anonymous
  • anonymous
need to know how to work this equation for the parallel i am not understanding fully...y=-5/3x+2...please help

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