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25-01-2018
Mathematics

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what is the y-coordinate of the solution of the system of equations ?

what is the ycoordinate of the solution of the system of equations class=

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choixongdong choixongdong

25-01-2018

y = 2x + 14 (1st)
-4x - y = 4
y = -4x - 4 (2nd)

so
2x + 14 = -4x - 4
6x = -18
x = -3

y = 2x + 14 = y = 2(-3) + 14 = 8

answer y = 8

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