SAT Math Practice Question #36378 - SATify | SATify

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SAT Math Practice Question #36378 - SATify | SATify

#36378

systems

linear equations

medium

75 sec

For each real number $k$ , which of the following points lies on the graph of each equation in the $x y$ -plane for the given system?

$4 x + 5 y = 20$
$12 x + 15 y = 60$

A.

$(k, - \frac{4}{5} k + 4)$

B.

$(k, \frac{4}{5} k - 4)$

C.

$(\frac{5}{4} k + 5, k)$

D.

$(- \frac{5}{4} k + 20, k)$