# SOLUTION: I need help on a a problem that says If f(x)=x^2 and g(x)=x-3, find (f(open circle)g)(0). I'm not sure how else to write the open circle thing, but could you please help me and ex

Algebra ->  Algebra  -> Functions -> SOLUTION: I need help on a a problem that says If f(x)=x^2 and g(x)=x-3, find (f(open circle)g)(0). I'm not sure how else to write the open circle thing, but could you please help me and ex      Log On

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 Click here to see ALL problems on Functions Question 176403: I need help on a a problem that says If f(x)=x^2 and g(x)=x-3, find (f(open circle)g)(0). I'm not sure how else to write the open circle thing, but could you please help me and explain this to me?Found 2 solutions by stanbon, Mathtut:Answer by stanbon(57984)   (Show Source): You can put this solution on YOUR website!If f(x)=x^2 and g(x)=x-3, find (f(open circle)g)(0). (fog)(0) = f[g(x)] = f[x-3] = (x-3)^2 = x^2-6x+9 ------------------------------------------ (fog)(0) = 0^2 - 6*0 + 9 = 9 ================================ Cheers, Stan H. Answer by Mathtut(3670)   (Show Source): You can put this solution on YOUR website!you can also write this as f(g(0)). which means you : evaluate g(0) which is g(0)=0-3=-3....-3 now becomes the number which we are evaluating in function f(x) f(-3)=-3^2=9 : so the answer of