Graph the function as a solid curve and its inverse as a dashed curve.f(x) = 1 - x2 for x ? 0
A. 
B. 
C. 
D. 
Answer: C
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Compare the right-hand and left-hand derivatives to determine whether or not the function is differentiable at the point whose coordinates are given.
y = 
y = -1
A. Since limx?-1+ f '(x) = -1 while limx?-1- f '(x) = 0, f(x) is not differentiable at 
B. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = 1, f(x) is not differentiable at 
C. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = -1, f(x) is not differentiable at 
D. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = 0, f(x) is differentiable at 
The sides in each pair of figures are proportional. Find the missing length.
A. 6 ft B. 23 ft C. 12 ft D. 36 ft
Find the standard equation of the parabola with the given focus and directrix.Focus: (3, -1); directrix: y = -3
A. (y - 3)2 = -4(x + 2) B. (x - 3)2 = -4(y + 2) C. (y - 3)2 = 4(x + 2) D. (x - 3)2 = 4(y + 2)
Estimate the quotient by first rounding each number as indicated.92.19 ÷ 27.6; Estimate by first rounding each number to the nearest ten.
A. 0.3 B. 5 C. 3 D. 30