1- Find f¹(x)= ?

f(x) = x-1/x+1 , x 1 State any restrictions on the domain of f¹(x). ( select the right answer)

a)x 1

b)x 1

c)x 0

d)x < 1

e)x > 1

B) Find f¹(x) =?

f(x) = x² + 2x, x 1

State any restrictions on the domain of f¹(x).( select the right answer)

a)x > 1

b)x 1

c)x > 1

d)x 1

e)x 2

C) Find f¹(x)=

f(x) = x² + 6x 1, x 3

State any restrictions on the domain of f¹(x).(select the right answer)

a)x 10

b)x > 10

c)x > 10

d)x 10

e)there are no restrictions on the domain

2. The sum of the length l and the width w of a rectangular area is 250 meters.

(a) Write w as a function of l.

w = (b) Write the area A as a function of l. A = (c) Find the dimensions that produce the greatest area. I=

W=

3- f(x) = x² + 8x + 2

a) Find the maximum or minimum value of the function. = b)State whether this value is a maximum or a minimum.

4- Consider the following.

P(x) = x⁴ + x³ 2x² + 4x 24

a)Find all the zeros of the polynomial function. (Hint: First determine the rational zeros. Enter your answers as a comma-separated list. (Enter all answers including repetitions.) x =

b)Write the polynomial as a product of its leading coefficient and its linear factors. P(x) =