GUYS PLEASE HELP MY TEST ENDS IN 20 MIN AND I ONLY HAVE 8 QUESTIONS

Lindsay is creating a bridge out of dried pasta and glue. in her plans, she sketches the graph to determine the lengths of the noodles, in centimeters, needed for the arch to increase the length of the bridge in 1 centimeter increments. which function did lindsay use to create her design? f(x) = (x – 5)2 + 8 f(x) = –(x + 5)2 + 8 f(x) = 0.5(x + 5)2 + 8 f(x) = –0.5(x – 5)2 + 8

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

How can you find the mean absolute deviation (mad) for this set of data?