10. Find the derivative of y = loga (3x + 5). 3 3 Ina In a In 3 [A] 3 3x+5 [B] 3x+5 [C] 3 x +5 [D] ( 3 x +5) Ina [E] (3x+5) Ina 11. Suppose the slope of the tangent to the curve y = f (x) at the point (4,7) is 5. Find f' (7). [A] 7 [B] 5 [C] = [D] - [E] -1 12. The area of a circle is increasing at a rate of 4 cm-/sec. How fast is the radius changing when the circumference is 27 centimeters ? [A] 27 cm/sec [B] = cm/sec [C] - cm/sec [D] 37 cm/sec [E] T cm/sec 13. Find the critical point(s) of the function y = ed *, if they exist. [A] x - -1,1 [B] x = 0 [C] x = 1 [D] x = 0,1 [E] There are no critical points