(A)
(B)
(C)
(D)
(E)
(A)
(B)
(C)
(D)
(E)
(A)
(B)
(C)
(D)
(E)
(A)
(B)
(C)
(D)
(E)
PRACTICE EXERCISES
Part A. Directions: Answer these questions without using your calculator.
The slope of the curve y^3 − xy^2 = 4 at the point where y = 2 is
−2
−
2
The slope of the curve y^2 − xy − 3x = 1 at the point (0, −1) is
−1
−2
+ 1
2
−3
The equation of the tangent to the curve y = x sin x at the point is
y = x − π
y =
y = π − x
y = x +
y = x
The tangent to the curve of y = xe−x is horizontal when x is equal to
0
1
−1
e
