Question 607990
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi
if f(x) = 3x-4 and g(x)= {{{sqrt(x^2 - 9)}}}
fog(x) = {{{3sqrt(x^2-9) - 4}}}
 fog(5) = 3{{{sqrt(25-9)}}} - 4 = {{{highlight(8)}}}