SAT Math Practice Question #11333 - SATify | SATify

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SAT Math Practice Question #11333 - SATify | SATify

#11333

linear equations

systems

hard

65 sec

For each real number $r$ , which of the following points lies on the graph of each equation in the $x y$ -plane for the given system?
$4 x + 3 y = 20$
$20 x + 15 y = 100$

A.

$(r, 5 - \frac{3 r}{4})$

B.

$(r, \frac{4 r}{3} + \frac{20}{3})$

C.

$(5 + \frac{3 r}{4}, r)$

D.

$(5 - \frac{3 r}{4}, r)$