**Q5: **

Find the rate of change of when and determine, to the nearest minute, the positive angle between the tangent at and the positive -axis.

- A ,
- B ,
- C ,
- D ,

**Q6: **

Evaluate the rate of change of at .

- A3
- B
- C5
- D
- E

**Q7: **

Determine the rate of change of the function at .

- A
- B
- C
- D

**Q8: **

If the function , determine its rate of change when .

- A
- B
- C
- D
- E

**Q9: **

A length is initially 9 cm and increases at a rate of 3 cm/s. Write the length as a function of time, .

- A
- B
- C
- D

**Q10: **

Evaluate the rate of change of at .

- A
- B9
- C
- D
- E

**Q11: **

What is the rate of change for the function ?

**Q12: **

A circular disc preserves its shape as it shrinks. What is the rate of change of its area with respect to radius when the radius is 59 cm?

- A
cm
^{2}/cm - B
cm
^{2}/cm - C
cm
^{2}/cm - D
cm
^{2}/cm

**Q13: **

Evaluate the rate of change of at .

- A
- B
- C
- D