I need help with this question. The reference is MODULE WCLN and the unit is unit 4 Ration and Radical Functions.

Mathematics Pre-Calculus 12 ago Unit 4 Self-Assessment c) Y-intercept at -5, no x-intercepts, discontinuous points at (-1, -5) and (3,-5) C. Exemplary =5 elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 14. Solve each of the following rational functions algebraically for their exact values. a ) (x - 1)2 Startistom grinnized a. elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 b ) X 3x + 18 b. Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 Page 19 of 22Mathematics Pre-Calculus 12 ago Unit 4 Self-Assessment c) Y-intercept at -5, no x-intercepts, discontinuous points at (-1, -5) and (3,-5) C. Exemplary =5 elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 14. Solve each of the following rational functions algebraically for their exact values. a ) (x - 1)2 Startistom grinnized a. elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 b ) X 3x + 18 b. Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 Page 19 of 22Mathematics Pre-Calculus 12 Unit 4 Self-Assessment ssessment 11. Change each of the following statements so that they are true as they relate to the following: y = - 2 * + 1 = 0 -3x=1 9=0 + 3 -sy = 3 smen x+1 a. As x approaches 1, |y | becomes very large As X approaches - 1 ly/ becomes very large elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 b. As |x| becomes very large y approaches 0 4 7 0 + 3 - dy = 3 ry =5 As Ixl becomes very large by approaches? elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 C . There is a vertical asymptote at x = -2 2-8*= -1 There is a vertical asymptote at =-1 elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 12. Write a possible equation for each of the following graphs. Explain your reasoning. a. , VII boo . 0~x to 1quotai x . a. f Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 Page 17 of 22Mar 8 8:39 AM 2023-03-09 .In A Self-Assessment A Calf-Assessment sment Mathematics Pre-Calculus 12 Unit 4 Self-Assessment b. elf LLL elf b. lary =5 elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 13. Write the equation of a possible rational function with the following characteristics. Explain your reasoning. lary =5 elf a ) Vertical asymptotes at x =13, x intercepts of x =5 and x =-1, and a 0 ) horizontal asymptote of y = elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 lary elf b) Vertical asymptotes at x= = , x intercept of x =0, and a discontinuous point at (5, lary lary elf Assessment No Attempt = 0 Beginning = 1 b. Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 Page 18 of 22AM -03-09 .In A Self-Assessment . A Calf-Assessment sment Mathematics Pre-Calculus 12 Unit 4 Self-Assessment C. x 3x 2x+ 1- 4x - 1 elf op elf elf C. elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 2x X x+1 d) x - 1 - 2 x2-4x+3 x - 3 elf A elf Assessment No Attempt = 0 d. Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 Page 20 of 22Unit 4 Self-Assessment Mathematics Pre-Calculus 12 15. a) Kerry rides a 60 km route on his road bike and can average 30 km per hour if there is no head wind or tailwind. For every 5 km of wind Kerry's average speed is affected by 1 km per hour. Write a rational function that calculates the time, 7, it would take Kerry to ride the 60 km route with a wind speed of s . Proficient = 4 Exemplary =5 elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 b) Sketch the graph. 22A l19 elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 c) How long would it take Kerry to ride the 60 km if he was riding into a 30 km per hour headwind? elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 d) Calculate the speed of the wind if it took Kerry 1 hour and 42 minutes to ride the 60 km route. elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 Page 21 of 22AM .A Calf-Assessment sment 3-03- . ..". A Self-Assessment Unit 4 Self-Assessment Mathematics Pre-Calculus 12 16. A river boat can travel at 20 km per hour in still water. The boat travels 30 km upstream against the current then turns around and travels the same distance back with the current. If the total trip took 7.5 hours, what is the speed of the current? Solve this question algebraically as well as graphically. op a) Algebra Solution elf a. elf Assessment No Attempt = 0 Beginning = 1 Emerging = 2 Developing = 3 Proficient = 4 Exemplary =5 b) Graphical Solution elf elf Assessment el No Attempt = 0 Beginning = 1 Emerging = 2 ry = Developing = 3 Proficient = 4 Exemplary =5 Page 22 of 22 2211 / 13 100% + 12. Write a possible equation for each of the following graphs. Explain your reasoning. (3 marks for a and 4 marks for b) a. x -x-6 y = 2 x -3x b. 4x - 28x - 40 2 + 5x - 14 Search Owe in katmandu.... 12 / 13 100% + 13. Write the equation of a possible rational function with the following characteristics. Explain your reasoning. (3 marks for a, 4 marks for b and 5 marks for c) a ) Vertical asymptotes at x -+3, x intercepts of x =5 and x=-1, and a horizontal asymptote of y - - 4x - 5 18 b) Vertical asymptotes at x = , x intercept of x =0, and a discontinuous point at (5, x 7 5x y 4x - 21x + 5 c) Y-intercept at -5, no x-intercepts, discontinuous points at (-1, -5) and (3,-5) -5x-+10x+15 1 = 12 -2.x-3 14 Solve each of the following rational functions algebraically for their exact values. (2 marks each = 8 marks total) a) 1=-1 x=3 b ) Search12 / 13 - 100% + x4-2x-3 14 Solve each of the following rational functions algebraically for their exact values. (2 marks each - 8 marks total) a) x =-1 x =3 b) X=O X =-3 c) -3 + v19 X = 10 d) 15 + V141 =X 6 Page 12 of 13 Mathematics Pre-Calculus 12 Answer Key Unit 4 Search2020-11-08.jpg (22... 2020-11-08.jpg (22... 2020-11-08J n katmandu... W gr_math_10_chapte.. y! The graph below re... 13 / 13 100% + Mathematics Pre-Calculus 12 Answer Key 15 Kerry rides a 60 km route on his road bike and can average 30 km per hour if there is no head wind or tailwind. For every 5 km of wind Kerry's average speed is affected by 1 km per hour. Write a rational function that calculates the time, 7, it would take Kerry to ride the 60 km route with a wind speed of s . State a reasonable domain. Sketch the graph. How long would it take Kerry to ride the 60 km if he was riding into a 30 km per hour headwind? Calculate the speed of the wind if it took Kerry 1 hour and 42 minutes to ride the 60 km route. (5 marks) 60 T(s) = 1 -S + 30 Domain: {s -50Ss