SAT Math Practice Question #23922 - SATify | SATify

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SAT Math Practice Question #23922 - SATify | SATify

#23922

algebra

coordinate geometry

medium

90 sec

The lines $x = \frac{1}{2} y + a$ and $y = \frac{1}{2} x + b$ intersect at the point $(4, 6)$ . What is $a + b$ ?

A.

$3$

B.

$4$

C.

$5$

D.

$6$

E.

$7$