Algebramedium · Past Paper
Find k if the point (2, 3) lies on the line 2x + ky = 10.
A1
B2
C3
D4
✓ Correct Answer: B — 2
Substitute x=2, y=3: 2(2) + k(3) = 10 -> 4 + 3k = 10 -> 3k = 6 -> k = 2.
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✓ Correct Answer: B — 2
Substitute x=2, y=3: 2(2) + k(3) = 10 -> 4 + 3k = 10 -> 3k = 6 -> k = 2.
Share this question