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 − x2 + 8x + 1. Find the slope of the graph at x = −2, that is f′(−2).

f(x) = 5x4 − x2 + 8x + 1x = −2
f′(−2) =
2.Easy
xyx = 3

Let f(x) = 5x3 + 6x2 + 8x + 3. Find the slope of the graph at x = 3, that is f′(3).

f(x) = 5x3 + 6x2 + 8x + 3x = 3
f′(3) =
3.Medium
xyx = 1

Let f(x) = x2·e0.5x. Find f′(1).

f(x) = x2·e0.5xx = 1
f′(1) =
4.Medium
xyx = 0.5

Let f(x) = x2·e0.5x. Find f′(0.5).

f(x) = x2·e0.5xx = 0.5
f′(0.5) =
5.Hard
xy

Let f(x) = x3 − 12x2 + 45x − 5. Find the x-coordinate x of the local minimum.

f(x) = x3 − 12x2 + 45x − 5
x =
6.Hard
xyx = 3

The tangent line to f(x) = 2x2 + 6 at x = 3 crosses the y-axis at y = b. Find b.

f(x) = 2x2 + 6x = 3
b =

Answer key

  1. 1. f′(−2) = −148
  2. 2. f′(3) = 179
  3. 3. f′(1) = 4.122
  4. 4. f′(0.5) = 1.445
  5. 5. x = 5
  6. 6. b = −12

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