Choose the correct answer.

The coordinates of the critical point of the function f (x) = 1-12x + x ^ 2 are: *

(0; 20)

(-6; 35)

(6; -35)

(-6; 109)

Derivative of the function f (x) = x (x-1) (x + 1): *

x ^ 3-x

2x-1

3x ^ 2-1

1

The derivative of the function f (x) = x x ^ 5-x ^ 8 x ^ 7 is: *

6x ^ 6

6x ^ 5 + x

6x ^ 5 + 1

6x ^ 5-1

The derivative of the function f (x) = x ^ (- 5) is: *

-5x ^ (- 6)

-6x ^ (- 5)

-5x ^ (- 4)

-4x ^ (- 5)

The material point moves according to the law s (t) = t ^ 2-4t + 2. At what point in time will the body stop? *

2

3

4

5