W Wadwau New member Joined Sep 3, 2005 Messages 1 Sep 18, 2005 #1 how can i solve this problem f(X)=3X+5 g(X)=X-5/3 a) f of g(X) b) g of f(X) should i just plug the numbers in. thanks in advance
how can i solve this problem f(X)=3X+5 g(X)=X-5/3 a) f of g(X) b) g of f(X) should i just plug the numbers in. thanks in advance
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,550 Sep 18, 2005 #2 Wadwau said: how can i solve this problem f(X)=3X+5 g(X)=X-5/3 a) f of g(X) b) g of f(X) Click to expand... Just do the function composition: . . . . .(f o g)(x) = f(g(x)) = f(x - 5/3) = 3[x - 5/3] + 5 = ...? Simplify. Then follow the same procedure for the other part. Wadwau said: should i just plug the numbers in. Click to expand... What numbers? Eliz.
Wadwau said: how can i solve this problem f(X)=3X+5 g(X)=X-5/3 a) f of g(X) b) g of f(X) Click to expand... Just do the function composition: . . . . .(f o g)(x) = f(g(x)) = f(x - 5/3) = 3[x - 5/3] + 5 = ...? Simplify. Then follow the same procedure for the other part. Wadwau said: should i just plug the numbers in. Click to expand... What numbers? Eliz.
