em # 13: Suppose the derivative of a function f (x) with domain D = R is given as (3 + x)2(5 x) f\") = 7? (a) Find the two critical values. Separate your answers with a comma. ('3) Find the interval where f is decreasing. The interval is of the form (a,b). Enter the values of a and b (in that order) into the answer box below, separated with a comma. (c) Find the xcoordinate of the relative maximum of f (if any). If there is no relative maximum, then enter DNE. ((1) Find the x-coordinate of the relative minimum of f (if any). If there is no relative minimum, then enter DNE. \"3\"\" as in these examples 3130:): as in these game I Enter your answer symbolically, #1301): v ' as in these examples Problem #7: (a) Find the equation of the line that is tangent to the graph of the function 4 marks] f (x) = In(6x + 5) at the point (0, In 5). (b) Find the equation of the line through the point (6, -5) and parallel to the line 6x + 3y = 9. Put your answers in the form y = mx + b, but do not include the 'y = ' part in the answer box. Enter your answer as a Put your answer in the form y Problem #7(a): symbolic function of x, as = mx + b, in these examples but do not include 'y = ' in your answer. Enter your answer as a symbolic Problem #7(b): function of x, as in these examples Save Problem #8: Your friend needs to save $4500 to go on a trip to Argentina in 7 years and the 2 marks] annual interest rate is 4%. How much should she invest now if the interest rate is compounded: (a) Continuously? (b) Semiannually? Problem #8(a): answer correct to 2 decimals Problem #8(b): answer correct to 2 decimals'em #7: (8) Find the equation of the line that is tangent to the graph of the function f(x) = max + 5) at the point (0,111 5). ('3) Find the equation of the line through the point (6. 5) and parallel to the line 6x + 3y = 9. Put your answers in the form y = mx + b, but do not include the 'y = ' part in the answer box. Enter your answer as 3 Put your answer in the form y . s mbolic function of x, as = mx + b! Probiem Ma). :1 .v but do no. mm -, = in your \"'1 these examples answer. Enter your answer as a symbolic Problem mm |:] function of x. as in these exampl 'm #8: Your friend needs to save $4500 to go on a trip to Argentina in 7 years and the annual interest rate is 4%. How much should she invest now if the interest rate is compounded: (a) Continuously? (b) Semiannually? Probiem #8(a): E answer correct to 2 daclmall Problem #80:): :I answer correct to 2 declmall