Question

show me what i did wrong

5. (8 pts) Make an accuwe graph of the piecewise-defined function xe-2 - 25x24 17-2x, x24 2x. 4r you य Eye Y-72 3 417 6. For the quadratic function f(x) = x + 2x - 8: a) (5 pts.) Determine the coordinates of the vertex algebraically 1473--1)-865 (-1,-9) b) (4 pts. Use the result from a) to determine the intervals where the function is increasing and where it is decreasing. Use interval notation. ( 5) c) (5 pts. Find the zeroes of the function, and determine the x-intercepts. x²+27-8 O=x+28 (x+2)(x-4) In (2016-410) Cup d) (1 pt.) Determine the y-intercepts. (08) e) (4 pts.) Sketch the graph of the function and label the special points. Thint- (3 pts.) Use the difference quotient to determine the slope of the secant line, when x changes from x = 1 to x = 5. f(5)=5²+2(x)-8=27 HS) - 0 - 174-5) 32 FLO) 212 +200) 85

Answer 1

& given for = x+2018 =+132-8-1 far = (2+1) ² - 9 @ verten = (1-9) 1 4 - 1° C -9 (-1,-9)| gnerearning = [-1.00) Decreasing = (-001-1)

Tero of ffens a=-412 na intercept (-4,0) and (310) ® yr intercept (0,-8) © shown an part ② © FC5) - fel? 5+1) - Atle şa och = 36-4 tools ♡