Let f(x) = 5x5 − 5x2 + 5x + 3. Find the slope of the graph at x = −3, that is f′(−3).
Derivatives worksheet with answers
1.Easy
f(x) = 5x5 − 5x2 + 5x + 3x = −3
f′(−3) =
2.Easy
Let f(x) = −x3 + 7x2 − 7x − 4. Find the slope of the graph at x = 2, that is f′(2).
f(x) = −x3 + 7x2 − 7x − 4x = 2
f′(2) =
3.Medium
Let f(x) = (−2x + 1)4. Find f′(1).
f(x) = (−2x + 1)4x = 1
f′(1) =
4.Medium
Let f(x) = ln(x2 + 2). Find f′(−2).
f(x) = ln(x2 + 2)x = −2
f′(−2) =
5.Hard
Let f(x) = x3 − 7.5x2 + 18x. Find the x-coordinate x of the local minimum.
f(x) = x3 − 7.5x2 + 18x
x =
6.Hard
Let f(x) = x3 − 10.5x2 + 36x − 2. Find the x-coordinate x of the local maximum.
f(x) = x3 − 10.5x2 + 36x − 2
x =
Answer key
- 1. f′(−3) = 2060
- 2. f′(2) = 9
- 3. f′(1) = 8
- 4. f′(−2) = −0.6667
- 5. x = 3
- 6. x = 3
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