The relation y = x2 + 2x + k passes through the point (2,0). Find the value of k
A
- 8
B
- 4
C
4
D
8
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
Y = x2 + 2x + k (given)
y = o when x = 2
thus 0 = 22 + 2 x 2 + k
0 = 4 + 4 + k
given k = -8
Source: Myschool Past Questions Archive (Record #46218)