Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima. Determine where the function is increasing and where it is decreasing. If necessary, round answers to two decimal places.f(x) = x3 - 4x2 + 6; (-1, 4)
What will be an ideal response?
local maximum at (0, 6)
local minimum at (2.67, -3.48)
increasing on (-1, 0) and (2.67, 4)
decreasing on (0, 2.67)
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In a scale drawing, a 2 inch represents 40 feet. Which of the following is not true? ?
A. ?5 inches represents 100 feet. B. ??1 inches represents 20 feet. C. ??12 inches represents 240 feet. D. ?8 feet is represented by 5 inches. E. ?4 feet is represented by approximately 0.2 inch.
Multiply the polynomials.(x + 4)(x2 - x + 7)
A. x3 + 28 B. x3 + 3x2 + 28 C. x3 + 5x2 + 11x + 28 D. x3 + 3x2 + 3x + 28
Perform the desired operation. Write the answer in the form a + bi.-3i(-4 + 9i)
A. 12i - 27i2 B. -27 + 12i C. 12i + 27i2 D. 27 + 12i
Match the system of equations with one of the graphs.x2 + y2 + 16y = 0x2 + y2 = 14x
A. 
B. 
C. 
D. 