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This is the Exam of PreCalculus which includes Irrational Number, Decimal Expansion, Rational, Equations, Polynomials, Prime, Factored, Integer Coe±Cients, Explicit Factorisation etc. Key important points are: Function, Careful Graph, Domain, Range, Function, Co Ordinates, Midpoint, Slope, Line Containing, Equation
Typology: Exams
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Midterm 1 Date: February 7, 2007
Instructor : Sue Haberger Time: 11:30 - 12:20am
Last Name (print):____________________________ First Name:_______________________
Signature:___________________________________ SFU Email ID:_____________________
Instructions:
**1. Do not open this exam until instructed to do so.
necessary.
Question Mark Maximum
Instructor: Sue Haberger Page 2
b) (2 marks) State the Domain and Range of the function
Instructor: Sue Haberger Page 4
a) ( 2 marks) Draw a careful graph of the linear function:
f ( x )= x!
b) (2 marks) Determine the equation of a line perpendicular to the graph of f(x) passing through
the point ( 7 ,! 5 )
c) (2 marks) Determine a formula for ( )
1 f x
! , the inverse of f(x)
Instructor: Sue Haberger Page 5
x f x !
( ) and
2 g ( x )= 3! x
a) (1 mark) Evaluate f ( 8 )
b) (1 mark) Evaluate ( fg )( 0 )
c) (1 mark) Give a simplified expression for g ( x + h )
d) (2 marks) Give a simplified expression for ( f o g )( x )
e) (3 marks) Solve for x : 2
f ( x )=