SOLUTION: how do u find the value of k that makes each equation true when x=4 and y=-3 a)y=kx+5 b)y=-2x+k c)y=-kx-7

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Question 152561: how do u find the value of k that makes each equation true when x=4 and y=-3
a)y=kx+5 b)y=-2x+k c)y=-kx-7
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
I'll do the first one to get you started:

1)

y=kx%2B5 Start with the given equation.


-3=k%284%29%2B5 Plug in x=4 and y=-3


-8=4k Subtract 5 from both sides.


-2=k Divide both sides by 4.


So the solution is k=-2