SOLUTION: Suppose y=3t+5 and x=21t^2. Write a function f that determines y in terms of x. (Assume t≥0.) f(x) = ?

Algebra ->  Equations -> SOLUTION: Suppose y=3t+5 and x=21t^2. Write a function f that determines y in terms of x. (Assume t≥0.) f(x) = ?      Log On


   

Question 1149496: Suppose y=3t+5 and x=21t^2. Write a function f that determines y in terms of x. (Assume t≥0.)
f(x) = ?
Answer by ikleyn(52777) About Me  (Show Source):
You can put this solution on YOUR website!
.

You express  t = sqrt%28x%2F21%29  and substitute it into the expression for "y"


    y = 3%2Asqrt%28x%2F21%29 + 5.      (1)    ANSWER



It works for positive (non-negative) "x".


You can transform the formula (1) into any other equivalent form.