N/A — Exam Answers

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What is the vertex of the graph of y is equal to 3 x squared plus 2 x plus 1 ?

A
open paren negative 1 third comma 0 close paren
B
open paren negative 1 third comma 2 thirds close paren
C
open paren 1 third comma 2 close paren
D
open paren 1 third comma 0 close paren
46

What are the slope and y -intercept of the line represented by the points shown in the table?

A
slope: 5 , y -intercept: 10
B
slope: 5 , y -intercept: negative 20
C
slope: 2 , y -intercept: negative 20
D
slope: 2 , y -intercept: 10
47

Which equation can Jeremy use to determine the amount of raisins in the trail mix?

A
1 point 5 r plus 2 point 5 times open paren 5 minus r close paren is equal to 5
B
1 point 5 r plus 2 point 5 times open paren 5 minus r close paren is equal to 10 point 5 0
C
r plus 1 point 5 0 is equal to 1 point 5 r
D
r plus open paren 5 minus r close paren is equal to 5
48

What is the domain of the function on the graph?

A
all real numbers greater than or equal to 0
B
all real numbers
C
all real numbers greater than or equal to negative 5
D
all real numbers greater than or equal to negative 2
49

Which statement could be used to describe the functions?

A
The domain of f of x is left parenthesis negative infinity comma 0 right bracket while the domain of g of x is left bracket 0 comma infinity right parenthesis .
B
Both original functions have a domain of left bracket 0 comma infinity right parenthesis .
C
The domain of f of x is left bracket 0 comma infinity right parenthesis while the domain of g of x is left parenthesis negative infinity comma 0 right bracket .
D
Both original functions have a domain of open paren negative infinity comma infinity close paren .
50

Which ordered pair needs to be removed in order for the mapping to represent a function?

A
3 comma 7
B
negative 2 comma negative 1
C
negative 3 comma negative 4
D
1 comma negative 3

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