SAT Math Practice Question #15531 - SATify | SATify

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SAT Math Practice Question #15531 - SATify | SATify

#15531

equations

systems

quadratic equations

hard

75 sec

If $(x_{1}, y_{1})$ and $(x_{2}, y_{2})$ are the two solutions to the system of equations:

y = x^{2} - 6 x + 8

y = - x + 2

what is the value of $y_{1} + y_{2}$ ?

A.

-2

B.

-1

C.

0

D.

1