8. In 2009, U. S. families, on average, spent $541.25 on back-to-school supplies. In 2016, the figure rose to $681.25.

a. Find a linear model in the form, y = mx + b, that fits this data using x=0 to stand for
the year 2000

b. Use your model or perhaps another algebraic idea to predict the back-to-school cost in
the year 2025

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

Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles

Describe the domain and range of y=2(3)^x-2+5