PhilippaU606184 PhilippaU606184
  • 25-10-2022
  • Mathematics
contestada

Find an equation of the line, and write it in (a) slope-intercept form if possible and (b) standard form.

Find an equation of the line and write it in a slopeintercept form if possible and b standard form class=

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DomonicY218970 DomonicY218970
  • 25-10-2022
[tex]y=-3x-12[/tex]

1) Note that we need to find a perpendicular line. Perpendicular lines have reciprocal and opposite slopes. So we know that the slope we need is -3

2) We also know that it must pass through (-2,-6), so let's plug the slope -3 the point (-2,-6) so that we can find the linear coefficient:

[tex]\begin{gathered} y=mx+b \\ -6=-3(-2)+b \\ -6=6+b \\ -6-6=b \\ b=-12 \end{gathered}[/tex]

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