NECO Mathematics 2024 Objective — Question 47

Question 47 of 50 from the National Examinations Council (NECO) Mathematics 2024 Objective paper, with the correct answer and a full explanation.

Which of the following points lies on the line 3x−8y=11?

A. A. (1,1)
B. B. (1,-1)Correct
C. C. (-1,-1)
D. D. (-1,1)

Explanation

Substituting (1,-1) into 3x−8y: 3(1)−8(−1)=3+8=11, which satisfies the equation 3x−8y=11. The other points do not satisfy it: (1,1) gives 3−8=−5; (−1,−1) gives −3+8=5; (−1,1) gives −3−8=−11.

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