Find the coordinates of the points of inflection for the function.f(x) = 7e-x2
A. (-.71, 4.25) and (.71, 4.25)
B. (-.57, 4.25) and (.57, 4.25)
C. (-.71, 2.93) and (.71, 2.93)
D. (-.57, 2.93) and (.57, 2.93)
Answer: A
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Solve the problem.Find an equation for the level surface of the function f(x, y, z) = x + ey+z that passes through the point 
.
A. ln(x) + y + z = 14 B. x + ey+z = 14 C. x + ey+z = 12 D. x + ey+z = 10
Use the formula v = r? to find the value of the missing variable. Give an exact answer unless otherwise indicated.v = 12 ft per sec, r = 1.6 ft (Round to four decimal places when necessary.)
A. 1.9635 radian per sec B. 7.5 radians per sec C. 3.8197 radians per sec D. 0.1333 radian per sec
Write the vertex form of the equation of the parabola shown in the given graph. Assume a = ±1.
A. y = -(x - 2)2 - 3 B. y = -(x + 2)2 + 3 C. y = (x + 2)2 - 3 D. y = -(x + 2)2 - 3
For the following questions assume that all variables in radicands are non-negative numbers. Simplify.
A. 
B. 
C. 
D. 
E. None of these