function notation

lets talk bout function notation real quick

NOTES

(f+g)(x)-add equations

(f-g)(x)-subtract equations

(f.g)(x)- multiply equations

(f/g)(x)- divide

(fog)(x) or f(g(x))-replace all x's in the f(x) equation with the equation g(x)--If x is replaced with a number plug into the equation


Let f(x)= x+ 4 and g(x)= x + 6

Ex: Find (f + g)(x)

(x +4) + (x + 6)=

2x + 10

Ex: Find (f-g)(x)

(x + 4) - (x + 6)=

-2