WAEC Mathematics 2020 Objective — Question 20
Question 20 of 50 from the West African Examinations Council (WAEC) Mathematics 2020 Objective paper, with the correct answer and a full explanation.
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Find the equation of the line parallel to 2y=3(x-2) and passes through the point (2,3).
- A. y = (3/2)x - 3
- B. y = (2/3)x - 2
- C. y = (3/2)xCorrect
- D. y = -(2/3)x
Explanation
2y=3x-6, so y=(3/2)x-3, giving gradient m=3/2. Using y=mx+c through (2,3): 3=(3/2)(2)+c => 3=3+c => c=0. So y=(3/2)x.
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