Derivatives worksheet with answers

Free printable Derivatives worksheet: 6 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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1.Easy
xyx = −2

Let f(x) = −5x4 + 2x2 − 6x + 5. Find the slope of the graph at x = −2, that is f′(−2).

f(x) = −5x4 + 2x2 − 6x + 5x = −2
f′(−2) =
2.Easy
xyx = 1

Let f(x) = x3 − 7x2 − 2x − 2. Find the slope of the graph at x = 1, that is f′(1).

f(x) = x3 − 7x2 − 2x − 2x = 1
f′(1) =
3.Medium
xyx = 1.5

Let f(x) = x·sin(x), with x in radians. Find f′(1.5).

f(x) = x·sin(x)x = 1.5 rad
f′(1.5) =
4.Medium
xyx = 1

Let f(x) = x·sin(x), with x in radians. Find f′(1).

f(x) = x·sin(x)x = 1 rad
f′(1) =
5.Hard
xyx = 2

The tangent line to f(x) = 0.5x2 + 6 at x = 2 crosses the y-axis at y = b. Find b.

f(x) = 0.5x2 + 6x = 2
b =
6.Hard
xy

Let f(x) = x3 + 9x2 + 24x + 3. Find the x-coordinate x of the local minimum.

f(x) = x3 + 9x2 + 24x + 3
x =

Answer key

  1. 1. f′(−2) = 146
  2. 2. f′(1) = −13
  3. 3. f′(1.5) = 1.104
  4. 4. f′(1) = 1.382
  5. 5. b = 4
  6. 6. x = −2

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