AlgebraEasy–MediumA second point on a line given by an equation
Algebra practice question
The line 3x + 2y = 10 in the xy-plane passes through the point (4, −1). Which of the following points also lies on the line?
- A. (2, 2)Correct
- B. (2, 3)
- C. (3, 1)
- D. (0, 10)
Answer: A. (2, 2)
Substitute: 3(2) + 2(2) = 10 ✓.
Why the other answers are wrong
- B. (2, 3)
- 3(2) + 2(3) = 12.
- C. (3, 1)
- 3(3) + 2(1) = 11.
- D. (0, 10)
- 3(0) + 2(10) = 20.
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