Question

If the area of the triangle with vertices (x, 0), (1, 1) and (0, 2) is 4 square units then a value of x is-

• A. – 2
• B. – 4
• C. – 6
• D. 8

Answer 1

Answer: (C)

– 6

Answer 2

Area = 4

$\frac{1}{2}$ [x (1 – 2) + 1 (2 – 0) + 0 (0 – 1)] = 4

Ž – x + 2 = 8

Ž x = – 6