Given: `f(x)=12+4x-x^2,[0,5]`
Find the critical value(s) of the function by setting the first derivative equal to zero and solving for the x value(s).
`f'(x)=4-2x=0`
`4=2x`
`2=x`
The value x=2 is a critical number. Plug in the x=2 and the endpoints of the interval into the original f(x) function.
f(0)=12
f(2)=16
f(5)=7
...
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Given: `f(x)=12+4x-x^2,[0,5]`
Find the critical value(s) of the function by setting the first derivative equal to zero and solving for the x value(s).
`f'(x)=4-2x=0`
`4=2x`
`2=x`
The value x=2 is a critical number. Plug in the x=2 and the endpoints of the interval into the original f(x) function.
f(0)=12
f(2)=16
f(5)=7
Examine the f(x) values to determine the absolute maximum and absolute minimum.
The absolute maximum occurs at the point (2, 16).
The absolute minimum occurs at the point (5, 7).