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 = −3

Let f(x) = −2x4 + x2 + 6x + 4. Find the slope of the graph at x = −3, that is f′(−3).

f(x) = −2x4 + x2 + 6x + 4x = −3
f′(−3) =
2.Easy
xyx = −1

Let f(x) = −x3 − x2 − 8x + 3. Find the slope of the graph at x = −1, that is f′(−1).

f(x) = −x3 − x2 − 8x + 3x = −1
f′(−1) =
3.Medium
xyx = 0.5

Let f(x) = x·sin(3x), with x in radians. Find f′(0.5).

f(x) = x·sin(3x)x = 0.5 rad
f′(0.5) =
4.Medium
xyx = 2

Let f(x) = x2·e2x. Find f′(2).

f(x) = x2·e2xx = 2
f′(2) =
5.Hard
xy

Let f(x) = x3 − 12x2 + 45x + 4. Find the x-coordinate x of the local maximum.

f(x) = x3 − 12x2 + 45x + 4
x =
6.Hard
xyx = 1

The tangent line to f(x) = 3x2 + 5x − 6 at x = 1 crosses the y-axis at y = b. Find b.

f(x) = 3x2 + 5x − 6x = 1
b =

Answer key

  1. 1. f′(−3) = 216
  2. 2. f′(−1) = −9
  3. 3. f′(0.5) = 1.104
  4. 4. f′(2) = 655.2
  5. 5. x = 3
  6. 6. b = −9

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