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Use substitution to determine which of the following points is a solution to the standard form equation below. 5x-2y=10

a. (-1,5)
b. (1,5)
c. (0,-5)
d. (0,5)

1 Answer

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Substitute the values (x,y) for x and y in the equation and check if they satisfy the equation.


(-1,5) \\ 5 * (-1)-2 * 5=10 \\ -5-10=10 \\ -15=10 \\ not \ true \\ \\ (1,5) \\ 5 * 1-2 * 5=10 \\ 5-10=10 \\ -5=10 \\ not \ true


(0,-5) \\ 5 * 0 -2 * (-5)=10 \\ 0+10=10 \\ 10=10 \\ true \\ \\ (0,5) \\ 5 * 0 -2 * 5=10 \\ 0-10=10 \\ -10=10 \\ not \ true

The answer is C.
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