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WAEC Mathematics 2015 Objective — Question 22

Question 22 of 50 from the West African Examinations Council (WAEC) Mathematics 2015 Objective paper, with the correct answer and a full explanation.

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What is the value of y when x=2?

  • A. 5
  • B. 7Correct
  • C. 9
  • D. 11

Explanation

Using the equation of the line y=2x+3 (gradient 2, intercept 3 from the table): when x=2, y=2(2)+3=7.

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