Find the linearization L(x) of f(x) at x = a.f(x) = 
, a = 0
A. L(x) = 
x
B. L(x) = 
x
C. L(x) = - 
x
D. L(x) = - 
x
Answer: B
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Use implicit differentiation to find dy/dx and d2y/dx2.xy - x + y = 5
A. 
= - 
; 
= 
B. 
= 
; 
= 
C. 
= - 
; 
= 
D. 
= 
; 
= 
Solve the problem.The orbit of a planet around a sun is an ellipse with the sun at one focus. The aphelion of a planet is its greatest distance from the sun, its perihelion is its shortest distance, and its mean distance is the length of the semimajor axis of the elliptical orbit. If a planet has a perihelion of 330.6 million miles and a mean distance of 333 million miles, write an equation for the orbit of the planet around the sun.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Convert the radian measure to degree measure. Use the value of ? found on a calculator and round answers to two decimal places.5
A. 572.86° B. 572.96° C. 286.58° D. 286.48°
Solve the system of equations.2x2 + y2 = 173x2 - 2y2 = -6
A. (1, 3) and (-1, -3) B. (2, -3) and (-2, 3) C. (1, 3), (1, -3), (-1, 3), (-1, -3) D. (2, 3), (2, -3), (-2, 3), (-2, -3)