Functions

Michelle

100

h(x)= x²+3x-12/x²-6x-22

h(3)=_______

-6/31

200

f(x)= 3x+6

g(x)= 5x

(g-f)(x)=_______

(g+f)(x)=_______

(g·f)(4)=________

(g-f)(x)= -2x+6

(g+f)(x)=8x+6

(g·f)(4)=240

300

g(x)=x-z

f(x)=(x-3)(x-6)

(g/f)(1)= _______

(g/f)(1)=-1/10

400

p(x)=x²+3

q(x)= √x+2

(p o q)(3)=_____

(q o p)(3)=______

(p o q)(3)= 8

(q o p)(3)= √14

500

H(x)= (3-9x)⁶

^{Find two functions; f of g so that (f o g)(x)=h(x)}

f(x)= x⁶

g(x)= 3-9x

Natalia

100

f(x)= 3x²-1

g(x)= 8x+5

(f o g)= _____

192x²+240x+80

200

f(x)= 5x+3

(f o f)(x)= ______

(f o f)(x)= 25x+18

300

f(x)= 8+3x

(f(-45)=________

f(x)= -127

400

f(x)= 7x²+1

g(x)= x +5

(f o g)(-2)= _______

(g o f)(4)= _______

(f o g)(-2)= 64

(g o f)= 118

500

f(x)=√x²+7

g(x)=3+5x

(f o g)(1)=_______

(f o g)(1)= 9

Farid

100

f(x)=√x 

g(x)=√2-x 

Find (f o f)(x) and (g o g)(x)

(f o f)(x)= 4√x

(g o g)(x)= √2-√2-x

200

f(x)= 3x+1

g(x)= x+4/2

Find (g o f)(3) and (f o g)(x)

(g o f)(3)= 7

(f o g)(x)= 3x+5/2

300

f(x)=√(x+2)(x-2)

find (f o f)(x) and the domain

 (f o f)(x)=  √x²-4

Domain= [2,∞)

400

f(x)= 2x+3

g(x)= x+1

Find (f o g)(X) and (g o f)(x)

(f o g)(x)= 2x+5

(g o f)(x)= 2x+4

500

f(x)= x²+5

g(x)= x+1

Find (f o g)(x) and (g o f)(x)

(f o g)(x)= x²+2x+6

(g o f)(x)= x²+6

Constanza

100

f(x)= x²

g(x)= 2x

(g - f)(-1)=_____

(g - f)(-1)= -3

200

g(x)= x²+7x-18 / x²-8x+7

g(4)=_______

g(4)= -26 / 9

300

f(x)= ³√x  +1

f(-64)=_______

f(8)=_______

f(-64)= 5

f(8)= 3

400

g(x)= x-4 / x-1

h(x)= 2x-5

(g o h)(x)=_____

domain:______

(g o h)(x)= 2x-9 /2x-6

domain:(- ∞, 3)U(3, ∞)

500

f(x)= 1 / x-4

g(x)=11 /x

(f o g)(x)=________

Domain:______

(f o g)(x)= x / 11-4x

domain: (- ∞, 0)U(0, 11/4)U(11/4, ∞)