__Quesion 1:__
f is a function defined by

.
Find f(0), f(2) and f(4).

Detailed Solution.

__Quesion 2:__
Is y a function of x in the following equation

-x^{ 2} + y^{ 2} - 2 = 0?

Detailed Solution.

__Question 3:__
Find the domain of function f defined by

f(x) = √ ( x^{ 2} + 1 ) + 2

where √ is the square root.

Detailed Solution.

__Question 4:__
f is a function defined by

f(x) = |x - 1| + 3.

Find f(-9).
Detailed Solution.

__Question 5:__
f and g are functions defined by

f(x) = 2x + 2 and g(x) = √ (x + 3).

Find (f o g)(6).

Detailed Solution.

__Question 6:__
Find all real values of x such that f(x) = 0 given that f is a function defined by

f(x) = (x^{ 2} + 2 x - 3) / (x - 1)

Detailed Solution.

__Question 7:__
Find all real values of x such that f(x) = g(x) where f and g are functions given by

f(x) = 3x + √(x) and g(x) = 2x + 6
Detailed Solution.

__Question 8:__

is y as a function of x in the following equation?

|y + 1| = x^{ 2} + 2

Detailed Solution.

__Question 9:__
Find the domain of function f defined by

f(x) = 1 / √ (|x - 1|)

Detailed Solution.

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