Question on: JAMB Mathematics - 2024
At what value of X does the function y = -3 - 2x + X2 attain a minimum value?
A
-1
B
14
C
4
D
1
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Correct Option: D
The function given is y = -3 - 2x + x². To find the minimum value, differentiate with respect to x:
dy/dx = -2 + 2x
Set dy/dx = 0 to find the critical point:
-2 + 2x = 0 → x = 1
Therefore, the value of x that gives the minimum value is 1.
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