Help me i need help plz

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

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83