1.

For the graph shown, at which point(s) is the graph:

a. Increasing

b. Decreasing

Give the coordinates of:

c. A local minimum point

d. A local maximum point

2. Find the coordinates and nature of the stationary point of each of the following quadratic functions:

a. f(x) = x2 − 6x + 8

b. y = x2 − 7x + 6

c. f(x) = -x2 -12x − 35

d. y = (x − 2)(x + 4)

e. f(x) = (3 − x)(x − 2)

3. Find the coordinates and nature of the turning points of the following cubic functions.

a. y = x3 − 4x2

b. f(x) = x3 − 27x + 10

c. y = x2(x + 3)

d. f(x) = 2x3 − 12x2 − 30x + 7

e. g(x) = (x+1)(x − 1)2