Question

Point (b, a) lies on the straight line ax + by –ab = 0. State with true or false.

• A. True
• B. False

Answer 1

The correct option is B

False

If point (b, a) lies on the line ax +by –ab = 0, then it must satisfy the equation

$\Rightarrow$ ax + by = ab (divide both side by ab)

$\Rightarrow$ (x/b) + (y/a) = 1

Putting the value of points in the given equation

$\Rightarrow$ (b/b) + (a/a) = 1

$\Rightarrow$ 1 + 1 $\ne$ 1

Since, LHS $\ne$ RHS. Given point does not lie on the line.