allerySolve by elimination: 3x + 4y = 11 and 5x − 4y = 5.
A(2, 5)
B(2, 5/4)
C(5/4, 2)
D(1, 2)
Answer & Solution
Correct answer: B. (2, 5/4)
Add: 8x = 16 ⇒ x = 2. Sub in first: 6 + 4y = 11 ⇒ 4y = 5 ⇒ y = 5/4.
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