Question

k is a nonzero constant. If $k=\frac{a+b}{ab}$ then the straight line $\frac{x}{a}+\frac{y}{b}=1$ passes through the point

• A. (k,k)
• B. (1/k, 1/k)
• C. (1,1)
• D. (k,1/k)

Answer 1

Answer: (B)

$\frac{1}{a}+\frac{1}{b}=k$