find the absolute maximum value and the absolute minimum value, if any, of the function. (if an answer does…

find the absolute maximum value and the absolute minimum value, if any, of the function. (if an answer does not exist, enter dne.) g(x)=-x² + 2x + 7 maximum minimum need help? read it master it

find the absolute maximum value and the absolute minimum value, if any, of the function. (if an answer does not exist, enter dne.) g(x)=-x² + 2x + 7 maximum minimum need help? read it master it

Answer

Explanation:

Step1: Find the derivative

The derivative of $g(x)=-x^{2}+2x + 7$ using the power - rule $(x^n)'=nx^{n - 1}$ is $g'(x)=-2x + 2$.

Step2: Find critical points

Set $g'(x)=0$. So, $-2x + 2 = 0$. Solving for $x$ gives $2x=2$, then $x = 1$.

Step3: Determine the second - derivative

The second - derivative $g''(x)=-2<0$. Since $g''(1)=-2<0$, the function has a maximum at $x = 1$.

Step4: Calculate the maximum value

Substitute $x = 1$ into $g(x)$: $g(1)=-(1)^{2}+2(1)+7=-1 + 2+7=8$.

Step5: Analyze the behavior of the function

Since $g(x)=-x^{2}+2x + 7$ is a quadratic function with $a=-1<0$, the parabola opens downwards. As $x\to\pm\infty$, $g(x)\to-\infty$. So, there is no absolute minimum.

Answer:

maximum: 8 minimum: DNE