Question: 1. Write the quadratic function in standard form. f ( x ) = x 2 + 2 x +5 f ( x ) = x

1. Write the quadratic function in standard form.

f(x) =x2+ 2x+5

f(x) =

x22x+5=0

2. Find

fg

and

gf.

f(x) =

6
x21

, g(x) =x+ 1

(a)

fg

(b)

gf

Find the domain of each function and each composite function. (Enter your answers using interval notation.)

domain off

(,2)(2,0)(0,)
domain ofg

domain offg

domain ofgf

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