Am i on the right track for #16? if not plz explain. what are the next steps?

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

Find the distance between (0,5) & (-4,2)

Ofin . (2,4) (2,1) a. y= 2 b. x= 2 c. x= -2 d. y= 2x