SOLUTION: If f(x) = 3x^2 + 2x – 7 represents the attitude score f(x) for a person x years old, find and interpret f(30).

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: If f(x) = 3x^2 + 2x – 7 represents the attitude score f(x) for a person x years old, find and interpret f(30).       Log On


   

Question 123304: If f(x) = 3x^2 + 2x – 7 represents the attitude score f(x) for a
person x years old, find and interpret f(30).

Answer by chitra(359) About Me  (Show Source):
You can put this solution on YOUR website!
The given function is:

f(x) = 3x%5E2+%2B+2x+-+7

we need to find f(30)... Plug in x = 30 in the above function.

f(30) = 3%2830%29%5E2+%2B+2%2830%29+-+7

f(30) = 3+%2A+900+%2B+60+-+7

f(30) = 2700+%2B+60+-+7

f(30) = 2760 - 7

f(30) = 2763

Hence the solution...