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4 years ago

11

Complete the solution of the equation. find the value of y when x = -13

2 answers:

tresset_1 [31]4 years ago

3 0

If x = -13, just plug -13 in for x in the equation, simplify, isolate the variable, and solve.
-4x + 5y = 12
-4(-13) + 5y = 12
-4 • -13 = 52
52 + 5y = 12
12 - 52 = -40
5y = -40
-40 / 5 = -8
y = -8

So when x is -13, y is -8.

Check the solution:
-4x + 5y = 12
-4(-13) + 5(-8) = 12
52 + (-40) = 12
52 - 40 = 12
12 = 12
It works, so this is correct.

marin [14]4 years ago

3 0

I think it is -12 or something like that

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3 years ago

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MArishka [77]

Which statement best compares the maximum value of the two functions?

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