Quoting Post Archived Topic: It will not be bumped to the top of the forum. Topic Need help with Algebra 3-4 problem Membername   Not a member? Sign Up Free (takes 20 seconds) Password   Forgotten your password? Post Font: Verdana Arial Black Georgia Comic Sans Impact   Size: Tiny Normal Big Huge   Color: Default Dark Red Red Orange Brown Green Olive Cyan Blue Dark Blue Indigo Black [ Check Spelling ] [ Post Preview ] [ LiveTags ] Quote: from [m]One Two Step[/m] at 10:44 pm on Dec. 8, 2008[quote]Quote: from [m]AcidSilence[/m] at 10:42 pm on Dec. 8, 2008[quote]well, subsitute. f(x)=3x+5 and g(x)=x squared. [/quote] How can I substitute for only f and g when they give the function of f and g..[/quote] FAQ Keyword Search: Post Options Favorites Manager Notify me of new replies to this topic by email Notify me of new replies to this topic by private message Original Post One Two Step Posted at 10:41 pm on Dec. 8, 2008 let f(x)= 3x+5 and g(x)xsquared how do you do (f+g)(x) and (f over g)(x)

Replies Just Waiting Here Posted at 10:47 pm on Dec. 8, 2008 You just plug them in... f(x) - 3x + 5   g(x) = x^2. The first one says (f+g)(x)  That just means you add the functions together... (f+g)(x) = f(x) + g(x) For the second one... it's... f(x)/g(x).  Just plug in the values, and those are your answers. rawrr Posted at 10:47 pm on Dec. 8, 2008 beat me :[ Desertfoxel Posted at 10:46 pm on Dec. 8, 2008 my brain hurts just by reading the equations One Two Step Posted at 10:44 pm on Dec. 8, 2008 Quote: from AcidSilence at 10:42 pm on Dec. 8, 2008 well, subsitute. f(x)=3x+5 and g(x)=x squared. How can I substitute for only f and g when they give the function of f and g.. hi sarah Posted at 10:44 pm on Dec. 8, 2008 (f+g)(x)   = x(x^2 + 3x + 5) = x^3 + 3x^2 + 5x (f over g)(x) = (3x + 5/x^2)x = uhh 3x + 5/x? not sure on the last one AcidSilence Posted at 10:42 pm on Dec. 8, 2008 well, subsitute. f(x)=3x+5 and g(x)=x squared. SparklingFlower Posted at 10:42 pm on Dec. 8, 2008 I used to know how to do this. I'm majoring in accounting. and now I'm depressed. All 7 previous replies displayed.