greengrass82
greengrass82 greengrass82
  • 13-11-2020
  • Mathematics
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Write the equation of the line that passes through (-4,3) and is parallel to y = -2x - 8.

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Learntionary
Learntionary Learntionary
  • 13-11-2020

Answer:

y = -2x - 5

Step-by-step explanation:

Let the equation if the line be y = mx + c

since the line is parallel to y = -2x - 8, their gradients/slope must be the same (aka m = -2)

sub (-4, 3):

3 = -2(-4) + c

c = -5

therefore, the equation of the line is y = -2x - 5

This is a question on coordinate geometry. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

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