Identify the vertex of the quadratic equation.f(x) = -4x2
A. (0, -4)
B. (4, 0)
C. (-4, 0)
D. (0, 0)
Answer: D
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Given the following rectangle, find the perimeter: ? W = 6x + 10 L = 8x - 6
A. ?P = 2(6x + 10) + 2(8x - 6) B. ?Perimeter cannot be found since x is not specified. C. ?P = 6x + 10 + 8x - 6 D. ??P = 12x + 10 + 16x - 6 E. ?P = 28x- 12
Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = -3x + 9y
A. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
c > 0
B. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
c ? 0
C. Domain: all points in the xy-plane; range: real numbers z ? 0 ; level curves: lines 
c ? 0
D. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
The graph shows sales in thousands of dollars for 1989 and 1990. Use it to answer the question. 
Which month in 2007 had the highest sales?
A. Month 12 B. Month 3 C. Month 5 D. Month 6
Find the relative maxima and relative minima, if any, of the function. Otherwise, answer none.
?
?
Relative maxima: __________
?
Relative minima: __________
What will be an ideal response?