BioHazard9064
  • BioHazard9064
Help Please
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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BioHazard9064
  • BioHazard9064
Choose the equation of the line passing through the point (-4, -2) and perpendicular to y = -x + 6. A. y = -x + 6 B. y = x - 6 C. y = -x - 2 D. y = x + 2
welshfella
  • welshfella
Hint: the line perpendicular to y = mx + b has a slope of - 1/m
BioHazard9064
  • BioHazard9064
ok

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More answers

welshfella
  • welshfella
so for y = -x + 6 the slope is -1 so the slope of a line perpendicular to it would be ?
BioHazard9064
  • BioHazard9064
y = x - 6
welshfella
  • welshfella
well the slope would be 1 / (-(-1) = 1 so the line would be y = x + something but why do you think its y = x + 6/
BioHazard9064
  • BioHazard9064
So D then
welshfella
  • welshfella
to find which equation is correct you need to plug in the coordinates of the point (-4,-2) and see if it fits
BioHazard9064
  • BioHazard9064
how do I do
BioHazard9064
  • BioHazard9064
that
welshfella
  • welshfella
|dw:1439503328195:dw|
welshfella
  • welshfella
so do those values of x and y satisfy the equation?
welshfella
  • welshfella
y = -2 x - 6 = -4-6 = ?
welshfella
  • welshfella
does y = x - 6 for these numbers?
BioHazard9064
  • BioHazard9064
No
welshfella
  • welshfella
that correct y = -2 and x - 6 = -10 so this cannot be the correct equation
BioHazard9064
  • BioHazard9064
so would it be D. y = x + 2
welshfella
  • welshfella
if we try y = x + 2 ;- y = -1 x + 2 = -4 +2 = -2
welshfella
  • welshfella
sorry thats y = -2
welshfella
  • welshfella
so y = x+ 2 is correct
BioHazard9064
  • BioHazard9064
Ok thanks
welshfella
  • welshfella
yw

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