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Line m has the equation y = 3x + 5. Line n has the equation y = kx - 7. Lines m and n intersect at the point (-4, -7). What is the value of k?

 Aug 26, 2018
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At pt (-4, -7), y = 3x + 5 interect with y = kx - 7

Therefore Y = -7 when x = -4 for both equations

Sub the values in equation y = kx - 7 

-7 = k(-4) - 7

0 = k(-4)

k = 0

 Aug 26, 2018

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