IIl MATH Practice Test E2OI3 I SHOW ALL WORK NO CREDIT WILL BE GIVEN FOR THE ANSWERS WITHOUT WORK 6 points each 1 Express the inequality in interval notation and graph the corresponding interval a b 0Sx 7 4 x 2 2 Simpli each expression and eliminate any negative exponent a 2x a 3 SimpliS the expression and express the answer using rational exponent QG v 4 Factor the expression t g 5 Simptify 6 Perform the operations and 2 1 r u x 4 simpliff 2x2 5 o T Solveforx 6 x 3 x 4 8 Solve the equation for H b 6x x 3 2x 8 x 4 6 x Y A 1 6H3 6f 2V 5X tf O g Solveforx x2 Bx 4 0 5 w o x ftl x l 4q 10 Find the domain of the frrnction a f x 11 4 b f x JTx 7 An income tax T is assessed according to the following firnction of income x in dollars o ir osx 10 000 t r 20 000 T x 10 08 r if 20 000 10 000 I t6oo 0 15 r 20 000 if L x a Find T 5 000 T 12 000 T 25 000 b If a person pays 25 000 in taxeso what is the income 12 Twin Cities Cable TV Service charges a 35 installation fee and 20 per month for basic service Find a function C that models the cost of cable TV for x months Determine the cost of 9 months of cable TV service the function Mark the scale and the ar es 14 The graph of a firnction is given below a Determine the intervals on which the function is increasing Determine the intervals on whichthe function is decreasing c Find the domain and the range fonn the gaph 2to d Find the net change inthe function from b x x 0 15 Find the local maximum and minimum value of the function below and the values x where they occur of MATH III ANSWERS TO PRACTICE TEST b Lo z L u t z af 6x r b u l 1 3 r o Q zt ss z ss f x 2 y l 6 a ry 7 V 6 Y vr Y 3q 7 8 t4 q t0 4 lYT al L q t6 b 3 oa i ri uq t aio t2 tPS s5 zox D t76 0m I C il 32 f 13 G D 6 4 2 o A q 6 t1 2 L 2 Dona irt L z zJ Q r Qu t 3 b t4 a o r d 3 a 0 I a 21 max ma 2 al X L l5 Laca f P ge z tJ loCA tT14 r1 c r1 r71 Ialrf C