Algebrahard · Past Paper
For what value of k will the lines 3x + y = 5 and kx + 2y = 10 be coincident?
A3
B6
C2
D1
✓ Correct Answer: B — 6
Coincident means ratios are equal: 3/k = 1/2 = 5/10. So k = 6.
Share this question
More from Algebra
- Factorize 3x^2 + 10x + 8.
- Solve for a: a + 3 = 3
- Which of the following is a factor of x^3 + x^2 + x + 1?
- A man starts his job with a certain monthly salary and a fixed increment every year. If his salary was Rs 15000 after 4 years and Rs 18000 after 10 years, find starting salary.
- Find the HCF of (x^2-1), (x^2-2x+1) and (x^3-1).