The value of x is 5. A good tool to use for things like this is "Desmos Graphing Calculator. It is free and there is no wait for an answer.
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It might be c but I am not sure maybe ita wrong
I couldn’t tell if the .5 cup was for each rabbit or for them all. So I gave both answers.
See the picture for all detail, I have done it by hand.
Few important steps;
-Take the first derivative
-Put it equal to zero
-you get the x value which is equal to 11
-Now for the check that x=11 is the least value or not, take the second derivative
-As, the 2nd derivative is positive so it is the least value
As x=0 in 1964 add 11 to it so at
x=11 we get 1975 so in this year car have least value