AP CALCULUS BC EXAMPREP SOLVED
QUESTIONS WITH DETAILED ANSWERS
FULL SOLUTION VIEW
●● Alternate definition of derivative
Answer: limit as x approaches a of [f(x)-f(a)]/(x-a)
●● When f '(x) is positive, f(x) is
Answer: increasing
●● When f '(x) is negative, f(x) is
Answer: decreasing
●● When f '(x) changes from negative to positive, f(x) has a
Answer: relative minimum
●● When f '(x) changes from positive to negative, f(x) has a
Answer: relative maximum
●● When f '(x) is increasing, f(x) is
Answer: concave up
,●● When f '(x) is decreasing, f(x) is
Answer: concave down
●● When f '(x) changes from increasing to decreasing or decreasing to
increasing, f(x) has a
Answer: point of inflection
●● When is a function not differentiable
Answer: corner, cusp, vertical tangent, discontinuity
●● Quotient Rule
Answer: (uv'-vu')/v²
●● Chain Rule
Answer: f '(g(x)) g'(x)
●● y = x cos(x), state rule used to find derivative
Answer: product rule
●● y = ln(x)/x², state rule used to find derivative
Answer: quotient rule
, ●● y = cos²(3x)
Answer: chain rule
●● Particle is moving to the right/up
Answer: velocity is positive
●● Particle is moving to the left/down
Answer: velocity is negative
●● absolute value of velocity
Answer: speed
●● To find absolute maximum on closed interval [a, b], you must
consider...
Answer: critical points and endpoints
●● If f '(x) = 0 and f"(x) > 0,
Answer: f(x) has a relative minimum
●● If f '(x) = 0 and f"(x) < 0,
Answer: f(x) has a relative maximum
QUESTIONS WITH DETAILED ANSWERS
FULL SOLUTION VIEW
●● Alternate definition of derivative
Answer: limit as x approaches a of [f(x)-f(a)]/(x-a)
●● When f '(x) is positive, f(x) is
Answer: increasing
●● When f '(x) is negative, f(x) is
Answer: decreasing
●● When f '(x) changes from negative to positive, f(x) has a
Answer: relative minimum
●● When f '(x) changes from positive to negative, f(x) has a
Answer: relative maximum
●● When f '(x) is increasing, f(x) is
Answer: concave up
,●● When f '(x) is decreasing, f(x) is
Answer: concave down
●● When f '(x) changes from increasing to decreasing or decreasing to
increasing, f(x) has a
Answer: point of inflection
●● When is a function not differentiable
Answer: corner, cusp, vertical tangent, discontinuity
●● Quotient Rule
Answer: (uv'-vu')/v²
●● Chain Rule
Answer: f '(g(x)) g'(x)
●● y = x cos(x), state rule used to find derivative
Answer: product rule
●● y = ln(x)/x², state rule used to find derivative
Answer: quotient rule
, ●● y = cos²(3x)
Answer: chain rule
●● Particle is moving to the right/up
Answer: velocity is positive
●● Particle is moving to the left/down
Answer: velocity is negative
●● absolute value of velocity
Answer: speed
●● To find absolute maximum on closed interval [a, b], you must
consider...
Answer: critical points and endpoints
●● If f '(x) = 0 and f"(x) > 0,
Answer: f(x) has a relative minimum
●● If f '(x) = 0 and f"(x) < 0,
Answer: f(x) has a relative maximum