N/A — Exam Answers

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What is the solution a comma c to this system of linear equations? 2 a minus 3 c is equal to negative 6; a plus 2 c is equal to 11

A
3 comma 4
B
negative 76 sevenths comma 17 sevenths
C
3 comma negative 4
D
87 sevenths comma negative 5 sevenths
24

Which equation is equivalent to negative k plus 0 point 0 3 plus 1 point 0 1 k is equal to negative 2 point 4 5 minus 1 point 8 1 k ?

A
negative 100 k plus 300 plus 101 k is equal to negative 245 minus 181 k
B
negative k plus 300 plus 101 k is equal to negative 245 minus 181 k
C
negative k plus 3 plus 101 k is equal to negative 245 minus 181 k
D
negative 100 k plus 3 plus 101 k is equal to negative 245 minus 181 k
26

Which is the best description of the graph of the function f of x is equal to 60 times 1 third to the x th power ?

A
The graph has an initial value of 20 , and each successive term is determined by multiplying by 1 third .
B
The graph has an initial value of 20 , and each successive term is determined by subtracting 1 third .
C
The graph has an initial value of 60 , and each successive term is determined by subtracting 1 third .
D
The graph has an initial value of 60 , and each successive term is determined by multiplying by 1 third .
29

Line cap j cap k passes through points J negative 3 comma 11 and K 1 comma negative 3 What is the equation of line cap j cap k in standard form?

A
14 x plus 4 y is equal to 1
B
14 x plus 4 y is equal to negative 1
C
7 x plus 2 y is equal to negative 1
D
7 x plus 2 y is equal to 1
30

Which formula can be used to describe the sequence? 64 comma negative 48 comma 36 comma negative 27 comma dot dot dot

A
f of x is equal to 3 fourths f open paren x plus 1 close paren
B
f of open paren x plus 1 close paren is equal to 3 fourths f x
C
f of open paren x plus 1 close paren is equal to negative 3 fourths f x
D
f of x is equal to negative 3 fourths f open paren x plus 1 close paren
32

Becky created a graph to represent her distance away from home one afternoon. She left home and ran to the park, met some friends and stayed at the park, and then walked back home using the same route. Which graph could Becky have created?

A
Image with description A graph titled Becky's distance from home. The horizontal axis shows time (minutes) and the vertical axis shows distance (miles). Both axes are unnumbered. The line shows an decrease, constant, and decrease in distance.
B
Image with description A graph titled Becky's distance from home. The horizontal axis shows time (minutes) and the vertical axis shows distance (miles). Both axes are unnumbered. The line shows a constant, decrease, and increase in distance.
C
Image with description A graph titled Becky's distance from home. The horizontal axis shows time (minutes) and the vertical axis shows distance (miles). Both axes are unnumbered. The line shows an increase and decrease in distance.
D
Image with description A graph titled Becky's distance from home. The horizontal axis shows time (minutes) and the vertical axis shows distance (miles). Both axes are unnumbered. The line shows an increase, constant, and decrease in distance.
33

Which system of linear inequalities has the point 2 comma 1 in its solution set?

A
y is less than 1 half x y is less than or equal to negative 1 half x plus 2 Image with description On a coordinate plane, 2 straight lines are shown. The scale on both axes ranges from negative 5 to 5 in increments of 1. The first solid line has a negative slope and goes through (0 comma 2) and (4 comma 0). Everything below the line is shaded. The second dashed line has a positive slope and goes through (negative 4 comma negative 2) and (0 comma 0). Everything below the line is shaded.
B
y is less than negative 1 half x plus 3 y is less than 1 half x Image with description On a coordinate plane, 2 lines are shown. The scale on both axes ranges from negative 5 to 5 in increments of 1. The first solid straight line has a negative slope and goes through (0 comma 3) and (4 comma 1). Everything below the line is shaded. The second dashed straight line has a positive slope and goes through (0 comma 0) and (2 comma 1). Everything below and to the right of the line is shaded.
C
y is less than negative x plus 3 y is less than or equal to 1 half x plus 3 Image with description On a coordinate plane, 2 lines are shown. The scale on both axes ranges from negative 5 to 5. The first solid straight line has a positive slope and goes through (negative 4 comma 1) and (0 comma 3). Everything below the line is shaded. The second dashed straight line has a negative slope and goes through (0 comma 3) and (3 comma 0). Everything to the left of the solid line is shaded.
D
y is less than or equal to negative x plus 3 y is less than or equal to 1 half x plus 3 Image with description On a coordinate plane, 2 solid straight lines are shown. The scale on both axes ranges from negative 5 to 5 in increments of 1. The first solid line has a positive slope and goes through (negative 4 comma 1) and (0 comma 3). Everything below the line is shaded. The second solid line has a negative slope and goes through (0 comma 3) and (3 comma 0). Everything below and to the left of the line is shaded.
34

Which graph represents the function y is equal to 2 x minus 4 ?

A
Image with description A coordinate plane with a line passing through (negative 4, 0) and (0, 2).
B
Image with description A coordinate plane with a line passing through (0, negative 4) and (2, 0).
C
Image with description A coordinate plane with a line passing through (negative 4, 0) and (negative 2, 4).
D
Image with description A coordinate plane with a line passing through (0, negative 4) and (4, negative 2).
35

What are the domain and range of f of x is equal to 4 to the x th power minus 8 ?

A
domain: start set x such that x is greater than negative 4 end set ; range: start set y such that y is greater than 8 end set
B
domain: start set x such that x is greater than 4 end set ; range: start set y such that y is greater than negative 8 end set
C
domain: start set x such that x is a real number end set ; range: start set y such that y is greater than 8 end set
D
domain: start set x such that x is a real number end set ; range: start set y such that y is greater than negative 8 end set
36

Which graph represents a reflection of f of x is equal to 1 third times 9 to the x th power across the x -axis?

A
Image with description On a coordinate plane, an exponential function approaches y = 0 in quadrant 3 and decreases into quadrant 4. It goes through (1, negative 3) and (1.25, negative 7).
B
Image with description On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and increases into quadrant 1. It goes through (1, 3) and increases to (1.25, 7).
C
Image with description On a coordinate plane, an exponential function approaches y = 0 in quadrant 1 and increases in quadrant 2. It goes through (negative 1, 3) and (negative 1.25, 7).
D
Image with description On a coordinate plane, an exponential function approaches y = 0 in quadrant 4 and decreases into quadrant 3. It goes through (negative 1, negative 3) and (negative 1.25, negative 7).
37

Which table represents a direct variation function?

A
Table with 6 columns and 2 rows.Row 1: Column 1, 'x'; Column 2, 'negative 5 point 5'; Column 3, 'negative 4 point 5'; Column 4, 'negative 3 point 5'; Column 5, 'negative 2 point 5'; Column 6, 'negative 1 point 5' Row 2: Column 1, 'y'; Column 2, '10'; Column 3, '8'; Column 4, '6'; Column 5, '4'; Column 6, '2'
B
Table with 6 columns and 2 rows.Row 1: Column 1, 'x'; Column 2, 'negative 5 point 5'; Column 3, 'negative 5 point 5'; Column 4, 'negative 5 point 5'; Column 5, 'negative 5 point 5'; Column 6, 'negative 5 point 5' Row 2: Column 1, 'y'; Column 2, 'negative 3'; Column 3, 'negative 1'; Column 4, '2'; Column 5, '5'; Column 6, '10'
C
Table with 6 columns and 2 rows.Row 1: Column 1, 'x'; Column 2, 'negative 3'; Column 3, 'negative 1'; Column 4, '2'; Column 5, '5'; Column 6, '10' Row 2: Column 1, 'y'; Column 2, 'negative 4 point 5'; Column 3, 'negative 3 point 0'; Column 4, 'negative 1 point 5'; Column 5, '0 point 0'; Column 6, '1 point 5'
D
Table with 6 columns and 2 rows.Row 1: Column 1, 'x'; Column 2, 'negative 3'; Column 3, 'negative 1'; Column 4, '2'; Column 5, '5'; Column 6, '10' Row 2: Column 1, 'y'; Column 2, 'negative 7 point 5'; Column 3, 'negative 2 point 5'; Column 4, '5 point 0'; Column 5, '12 point 5'; Column 6, '25 point 0'
38

Which linear function represents the line given by the point-slope equation y minus 2 is equal to 4 times open paren x minus 3 close paren ?

A
f of x is equal to 4 x minus 10
B
f of x is equal to 6 x minus 1
C
f of x is equal to 8 x minus 6
D
f of x is equal to 4 x minus 14

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