Algebra 2: Spring Final Exam Study Guide Name:________________________________Period:_____ Score:__________/100 My final exam is: _____________________________________ Directions: Simplify each expression. SHOW ALL YOUR WORK. Circle your final answer. 1) 3 7 24x m k 3 4) 5 9 8x 9 27m12 2) 5) 4 3 20 17 81m y k 1252 3 • 16 3 4 50 63 3) 4 6) 16m 12 3 56 3 k x Directions: Simplify each expression. SHOW ALL YOUR WORK!! x5 x 7) 2x 1 x 3 x 2 6x 5 49x 2 9 • 2 2 10) 7x 4x 3 x 7x 10 x5 x7 6x 8) 8x 9) 7 5 3x 3 6x 2 6x 2 47x 8 36x 2 1 4 4 3 2 4x 8x 3 11) x 6x 16x Directions: Solve for x. Be sure to show all your work. 7 2 12) 4x 5 2x 4 13) 4 2 5x 3 7x 6 x3 x x 2 14) x 2 x 4 x 2 15) 26 35 56 x5 x x Directions: Graph each of the following functions, first identifying the specified information. 𝑥−1 𝑥+2 2𝑥 16) 𝑓(𝑥) = 𝑥+3 17) ℎ(𝑥) = (𝑥−3)(𝑥−2) 18) 𝑔(𝑥) = 𝑥 3 −𝑥 Vertical asymptote: Vertical asymptote: Vertical asymptote: Holes: Holes: Holes: Horizontal asymptote: Horizontal asymptote: Horizontal asymptote: x-intercept(s): x-intercept(s): x-intercept(s): Directions: Graph each function, identify the domain and range, find its inverse, identify its domain and range, and graph it. LABEL ALL YOUR ANSWERS APPROPRIATELY!!! 19) f (x) 2x 6 12 10 8 6 4 2 -10 -5 5 10 5 10 -2 -4 -6 -8 -10 -12 20) w(x) x 2 1 12 10 8 6 4 2 -10 -5 -2 -4 -6 -8 -10 -12 Directions: Rewrite each exponential equation as a logarithmic equation. 3 21) 4 64 22) 10 2.57 x x 23) 3 5 Directions: Rewrite each logarithmic expression using the change of base formula. When possible, evaluate the expression. SHOW ALL YOUR WORK. 24) log 3 15 25) log 8 128 26) log 4 512 Directions: Expand each logarithm. 27) log 5 3 xm 4 28) 6x 3 log 7 5 n Directions: Write each logarithmic expression as a single logarithm. 1 log 9 m 3log 9 w 2 29) 30) 1 4 log x 5 log k log w 3 Directions: Solve for x showing all your work. When necessary, round your answer to the nearest thousandth. Circle your final answer. 31) 2 ln x ln e5 15 34) 105x9 75 32) log 7 4x 23 18 6 35) 2ln x 3ln2 5 33) 5e x 7 27 36) log3 x 8 log3 x 2 3 𝑟 Directions: Solve each problem showing all your work. Use the equations 𝐴 = 𝑃(1 + 𝑛)𝑛𝑡 or 𝐴 = 𝑃𝑒 𝑟𝑡 , as appropriate. 37) Henry invested $1200 in a 6 year CD at a 5.25% interest rate. The interest is compounded monthly. How much money will Henry have when his CD matures? 38) Katherine invests $1000 in a 5 year CD that compounds interest continuously. She was thrilled to lock in at a 5.73% interest rate. How much money will Katherine have when her CD matures? 39) How long will you have to invest $500 if you earn 3.74% compounded continuously and you want to double your money? Directions: Simplify each expression showing all your work. 15! 40) 11!7! 41) 6! - 0! 10!3! 42) 8! 43) 5! + 4! 44) There are twelve students trying out for the debate team. Only four students can be selected. How many different groups of four can be formed? 45) There are fourteen different pizza toppings from which I can choose. If I want a seven topping pizza, how many different pizzas can I order? 46) Thirteen people have entered a math contest. How many different ways can these thirteen people place first, second, or third? 47) I plan to order a deli sandwich for lunch. There are nine different items from which I can choose to include on my sandwich. If I want a four item sandwich, how many different sandwiches can I order? Directions: Use Pascal’s Triangle or the binomial theorem to expand the binomials. 5 48) 3x 2 49) 5m 3x 4 50) What is the 3rd term of (2 x 5)7 ? Directions: Convert each angle from degrees to radians. 51) 170 52) 510 Directions: Convert each angle from radians to degrees. 2 9 53) 54) 7 5 Directions: Sketch each angle. 55) –135 56) 9 4 57) Give two angles coterminal to the angle 7 6 58) Find the six trigonometric functions of in the right triangle below. 9 7 59) What is the value of in the triangle above in degree measure, to the nearest tenth? 60) Directions: Complete the blank unit circle with degrees, radians and coordinates. Directions: Evaluate the expression without using a calculator. Leave all answers as fractions or whole numbers. Put all answers in rationalized form. 2 61) sin 62) cos (-300) 63) tan 840 3 64) sec 4 3 67) csc 120 65) tan 66) cos(150) 3 68) cos( ) 69) sin Directions: Verify each identity. 1 70) sec 𝑥 − tan 𝑥 sin 𝑥 = sec 𝑥 71) sec csc tan 72) tan cot sec csc 73) 1−cos2 x cosx 15 4 = sinxtanx 73) csc 𝜃 cot 𝜃 − tan 𝜃 = 1 sin 𝜃 csc 𝑥 cos 𝑥 74) cos 2 𝑥 = tan 𝑥+cot 𝑥 tan2 𝑥 74) tan2 𝑥+1 = sin2 𝑥 sint cost 75) tant + cott = sint + cost Directions: Use sum and difference formulas to find the exact value of the following. 76) sin 15° 77) tan 75° 78) cos 105° 79) sin 265° Directions: Sketch at least one period of each of the following functions. 80) 𝑦 = 3 cos 𝑥 81) 𝑦 = cos 2𝑥 + 1 𝜋 82) 𝑦 = 2 sin(𝑥 − 2 ) 𝑥 83) 𝑦 = − sin 2