Pretest

Question 1

What is the value of lfloor 3 point 6 rfloor ?

Revolt · Accepted Answer

B: 3

Question 2

Which set of numbers best describes the possible values of x in the equation? lceil x minus 1 rceil is equal to lfloor x rfloor

Revolt · Accepted Answer

A: only noninteger values of  x

Question 3

What is the value of lceil minus 4 point 6 rceil ?

Revolt · Accepted Answer

A: negative 4

Question 4

Where is the graph of f of x is equal to 4 lfloor x minus 3 rfloor plus 2 discontinuous?

Revolt · Accepted Answer

D: all integers

Question 5

What is the value of lfloor minus 12 rfloor ?

Revolt · Accepted Answer

A: negative 12

Question 6

Which statement describes the graph of f of x is equal to lfloor x rfloor minus 2 on left bracket 0 comma 3 right parenthesis ?

Revolt · Accepted Answer

C: The steps are at  y is equal to negative 2  for  0 is less than or equal to x comma x is less than 1 , at  y is equal to negative 1  for  1 is less than or equal to x comma x is less than 2 , and at  y is equal to 0  for  2 is less than or equal to x comma x is less than 3 .

Question 7

Which statement explains why the value of lfloor 2 point 4 rfloor is 2 but the value of lfloor minus 2 point 4 rfloor is negative 3 ?

Revolt · Accepted Answer

A: because  2  is the greatest integer not greater than  2 point 4 , and  negative 3  is the greatest integer not greater than  negative 2 point 4

Question 8

What is the value of 6 lceil 4 minus 9 point 4 rceil ?

Revolt · Accepted Answer

D: negative 30

Question 9

What is the value of lfloor minus 1 point 1 rfloor ?

Revolt · Accepted Answer

B: negative 2

Question 10

Kareem wrote the expressions shown. lceil 3 point 2 rceil lfloor 2 point 7 rfloor lceil 2 point 9 rceil lfloor 4 point 8 rfloor Which pair is equivalent?

Revolt · Accepted Answer

B: lfloor 4 point 8 rfloor  and  lceil 3 point 2 rceil

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