Equation of a straight line passing through the point (-1, 2) and making equal intercepts on the axes is
- A. $x-y=1$
- B. $x-2y=1$
- C. $x+y=1$
- D. $x-y=2$
Answer: C. $x+y=1$
Explanation: Equation of line with equal intercepts 'a' is $x/a + y/a = 1 \Rightarrow x+y=a$. Since it passes through (-1, 2), substituting gives $-1+2=a \Rightarrow a=1$. Thus, the equation is $x+y=1$.