At what value of X does the function y = -3 - 2x + X2 att...
At what value of X does the function y = -3 - 2x + X2 attain a minimum value?
-1
14
4
1
Correct answer is D
Given that y = -3 - 2x + X2
then, dydx = -2 + 2x
At maximum value, dydx = O
therefore, -2 + 2x
2x = 2
x = 2/2 = 1
For a class of 30 students, the scores in a Mathematics test out of 10 marks were as follows; 4,5...
The inverse function f(x) = 3x + 4 is ...
Find the compound interest (CI) on ₦15,700 for 2 years at 8% per annum compounded annually. ...
Which of the following is not a measure of dispersion? ...
The solution of x + 2 ≥ 2x + 1 is illustrated...
In the diagram, NQ//TS, <RTS = 50o and <PRT = 100o. Find the value of <NPR...