Find the local maximum and minimum values and saddle point(s) of the function. If you have three-dimensional graphing software, graph the function with a domain and viewpoint that reveal all the important aspects of the function. (Enter your answers as a comma- separated list. If an answer does not exist, enter DNE.) f(x, y) = Se'(y? - x2) local maximum value(s) local minimum value(s) saddle noint(s)

☐ ☐ 4. The figure below shows the graphs of f(x), f'(x), and f" (x). Identify each curve. blue black orange ☐ -5 -5- --5- Choices f(x) f'(x) f"(x) 5. The figure below shows the graphs of f(x), f'(x), and ƒ" (x). Identify each curve. -2- -2 2 black Choices orange blue f(x) f'(x) f" (x)

Use technology to sketch the graph of the given function. f(x) = x4 – 2x3 + x² - 2x + 1 Indicate any extrema. The coordinates of the extrema should be accurate to two decimal places. [HINT: To locate extrema accurately, plot the first derivative.] (If an answer does not exist, enter DNE.) (х, у) %3D (1.40, – 1.49 minimum Indicate any points of inflection. The coordinates of the points of inflection should be accurate to two decimal places. [HINT: To locate points of inflection accurately, plot the second derivative.] (Order your answers from smallest to largest x. If an answer does not exist, enter DNE.) (x, y) 0.60, – 0.55 X (x, y) = ( 0.21,0.78 * )