9) mr. keller bought a new scooter for $900. he used a function to
estimate how its value will depreciate, or decrease over time.
lesson 21
age in years, t
12
value of dollars, vt) $900 $765 $650.25 $552.71
what type of function did mr. keller use to model this relationship?
describe the rate at which the scooter depreciates. write an equation
for the function.

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

Find the roots of the equation below. x^2 - 6 + 9 = 0

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