Enable text based alternatives for graph display and drawing entry

Try another version of this question

Function Operations
Given the function `f(x)=2 x - 4` and the function `g(x) = 9x^2+2x + 2` determine each of the following.

Give your answer as a whole number or a simplified fraction.
Evaluate `f(3) + g(12)`      `f(3) + g(12) = `
 
Evaluate `g(5) - f(6)`      `g(5) - f(6) = `
 
Evaluate `f(4) * g(7)`  `f(4) * g(7) = `
 
Evaluate `g(2)/f(5)``g(2) / f(5) = `
 

Get help:


X
MathQuill
   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
[more..]