Test: Functions I - Challenging

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Question 1:   If f( x )= 1 7 x+12 , find f( 4 )
11 6 7
11 3 7
11 5 7
11 4 7
Question 2:   If f( x )= 3x , find f( 5 )
No answer
0
2
2
Question 3:   If f( x )= x x2 , find f( 3 )
2 5
1 5
3 5
1 2 3
Question 4:   If f( x )= 6x , find f( 18 )
6
2 6
No answer
0
Question 5:   If f( x )= | x7 | , find f( 3 )
No answer
2
2
2 3
Question 6:   What is the domain of: f( x )= x+3 ( x7 )( x4 )
No answer
xR
xR/{ 7,4 }
xR/{ 7,4 }
Question 7:   What is the domain of: f( x )= | 5x |
xR
xR/{ 5,0 }
xR/{ 5 }
x5
Question 8:   Which function represents the following graph:


f( x )=7x+2
f( x )= 2 7 x+2
f( x )=7x+2
f( x )=7x+2
Question 9:   Which function represents the following graph:


f( x )=| x+1 |
f( x )=| x1 |
f( x )=( x+1 )( x+1 )
f( x )=| x |+1
Question 10:   Which function represents the following graph:


f( x )= x 2 1
f( x )= x 2 +1
f( x )= 1 2 x 2 1
f( x )= 1 2 x 2 +1