Unit 1 Practice FRQ infinity. f(X)=*X+1/2 does not have a H.A. x x f(x)=2 l3 -1 has a HA. at y=0 because an exponential function can never =0. 0\" 75F Sunny A g: n- g (1 9/17/20 ' 6 O G] httpszllapclassroom.collegeboard.org/ZS/assessments/assrg. .. . rents/47036542 ' Unit 1 Practice FRQ N0 CALCULATOR lS ALLOWED FOR THIS QUESTION. Show all of your work, even though the question may not explicitly remind you to do so. Clearly label any functions, graphs, tables, or other objects that you use. Justications require that you give mathematical reasons, and that you verify the needed conditions under which relevant theorems, properties, denitions, or tests are applied. Your work will be scored on the correctness and completeness of your methods as well as your answers. Answers without supporting work will usually not receive credit. Unless otherwise specied, answers (numeric or algebraic) need not be simplied If your answer is given as a decimal approximation, it should be correct to three places after the decimal point. Unless otherwise specied, the domain of a function f is assumed to be the set of all real numbers a: for which f (x) is a real number. '1 for x 0 | Let f be the function denk above, where k is a constant. [,1 a) For what value of k, if any, is f continuous at m = ~3 ? Justify your answer. 2 ' \" ._ ._ ' ' \" ' \" \"\" i BIQXX;OCQ:::EI l' (2x2+5x-3)/(x2+4x+3) = [(2x;)g_x+3)l/(x+1:1;x+3)] : (2x71)/(x+1) L [rm as x43. (2x-1)/(x+1) = 7/2 L . rim as x->3+ kx+1/2 = -3k+1/2 \\ ~3k+1l2 = 7/2 k=-1 \\\\ 20 / 10000 W ,a 8:11PM W' 75F Sunny /\\ 9' 9' K '1') E 9 l' 101