Cet Reviewer Functions

CET REVIEWER: FUNCTIONS Multiple Choice  Identify the choice that best completes the statement or answers answers the question. question.

 ____

1. If A. B. 3. 5

and

, what is the value of C. 3 D. 6

 ____

2. Which !a"h does not  !e"!esent  !e"!esent a function? A.

B.

 ____

3. If a function is defined #$ the the e%uation A.

, which !a"h !e"!esents the the inve!se of this function? function? C.

D.

&. 'ou! "oints on the !a"h of of the function Which e%uation !e"!esents A.

C.

D.

B.

 ____

?

a!e shown #elow. #elow.

? C.

B.  ____

D.

5. Which !a"h does not  !e"!esent a function? A.

B.

 ____

D.

6. Which !a"h !e"!esents a !elation that is not  a function? A. C.

B.

 ____

(. If A.

D.

and

, then

is e%ual to C.

B.  ____

 ____

C.

). What is the !ane of A. B. *. Which function is one+to+one? A. B.

D. & ? C. D.

C. D.

 ____ 1. Which function is one+to+one? A.

C.

B.

 ____ 11. If A. do-ain

D.

, what a!e its do-ain and !ane? C. do-ain / !ane

B. do-ain

/ !ane

D. do-ain

/ !ane

/ !ane

 ____ 12. Which dia!a- !e"!esents a !elation that is #oth one+to+one and onto? A. C.

B.

D.

 ____ 13. What is the !ane of the function shown #elow?

A. B.

 ____ 1&. 'o! A. B.  ____ 15. If A. B.

C. D.

, what a!e the do-ain and !ane? C.  and

 and

D.

 and

 and and

, what is

? C. D.

 ____ 16. 0he do-ain of A. !eate! than 2 B. less than 2  ____ 1(. If A. B.

is the set of all !eal nu-#e!s C. ece"t 2 D.  #etween , then

and 2

e%uals C. D.

 ____ 1). Which list of o!de!ed "ai!s does not  !e"!esent a one+to+one function? A. C. B. D.  ____ 1*. If A. B.

and

 , what is the value of C. 25 D. 12*

 ____ 2. If A. m and its inve!se a!e #oth functions. B. m is a function and its inve!se is not a function.

?

, which state-ent is t!ue? C. m is not a function and its inve!se is a function. D. eithe! m no! its inve!se is a function.

 ____ 21. Which inte!val notation !e"!esents the set of all nu-#e!s f!o- 2 th!ouh (, inclusive? A. C. B. D.

 ____ 22. 0he function A.  o! 3 B.

is undefined when the value of  x is C. 3, onl$ D.

 ____ 23. 0he fi!st th!ee fiu!es in a "atte!n a!e shown.

Which function !e"!esents  f(n), the nu-#e! of s-all s%ua!es in fiu!e n? A. C. B.  ____ 2&. If A. B.

D. , which could #e the e%uation fo!

? C. D.

 ____ 25. If A. +1 B. 

, what is

? C. 1 D. &

CET REVIEWER: FUNCTIONS Answer Section MULTIPLE COICE

1. 2. 3. &. 5. 6. (. ). *. 1. 11. 12. 13. 1&. 15. 16. 1(. 1). 1*. 2. 21. 22. 23. 2&. 25.

A A A A A A A A A A A A A A A A A A A A A A A A A

C D B A D C D B B B A D C A A B D C D B D B D D A

04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04

Co-"ositions of 'unctions Definin 'unctions !a"hin 7oa!ith-ic 'unctions Identif$in the 8%uation of a !a"h Definin 'unctions Definin 'unctions Co-"ositions of 'unctions Do-ain and 9ane Definin 'unctions Definin 'unctions Do-ain and 9ane Definin 'unctions Do-ain and 9ane Do-ain and 9ane Co-"ositions of 'unctions Do-ain and 9ane 'unctional otation Definin 'unctions Co-"ositions of 'unctions Inve!se of 'unctions et 0heo!$ :ndefined 9ationals