The relation y = x2 + 2x + k passes through the point (2,0). Find the value of k
-
- 8
- - 4
- 4
- 8
The correct answer is: A
Explanation
Y = x2 + 2x + k (given)y = o when x = 2
thus 0 = 22 + 2 x 2 + k
0 = 4 + 4 + k
given k = -8