SOLUTION: I'm having trouble finding f(30). We had an assignment to make figures out of q-tips: # of q-tips & the # of q-tips around the perimeter. We had to plot that, which I did. I did a
Algebra ->
Functions
-> SOLUTION: I'm having trouble finding f(30). We had an assignment to make figures out of q-tips: # of q-tips & the # of q-tips around the perimeter. We had to plot that, which I did. I did a
Log On
Question 781321: I'm having trouble finding f(30). We had an assignment to make figures out of q-tips: # of q-tips & the # of q-tips around the perimeter. We had to plot that, which I did. I did a few questions & came across that one (f(30)) & I'm greatly confused. The question says "Find the value of f(30). What does it represent? How would I find this...? Answer by DrBeeee(684) (Show Source):
You can put this solution on YOUR website! You need to know the function f(). For example let
(1) f(x) = x^2 + 3x -4
Then to find f(30), all you do is substitute 30 for every x in the function.
(2) f(30) = 30^2 + 3*30 -4 or
(3) f(30) = 900 + 90 -4 or
(4) f(30) = 986
Does this help? I hope so.
(