AnswersAlgebra 1Functions and Two-Variable Equations

Functions and Two-Variable Equations — Test Answers

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Line cap c cap d passes through points C 3 comma negative 5 and D 6 comma 0 What is the equation of line cap c cap d in standard form?

A
5 x plus y is equal to 18
B
5 x plus 3 y is equal to 18
C
5 x minus 3 y is equal to 30
D
5 x minus y is equal to 30
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The volume of air inside a rubber ball with radius r can be found using the function V of r is equal to 4 thirds pi r cubed What does V of 5 sevenths represent?

A
that the volume of the rubber ball is 7 cubic feet when the radius is 5 feet
B
that the volume of the rubber ball is 5 cubic feet when the radius is 7 feet
C
the volume of the rubber ball when the radius equals 5 sevenths feet
D
the radius of the rubber ball when the volume equals 5 sevenths cubic feet
24

Alejandra correctly wrote the equation y minus 3 is equal to 1 fifth times open paren x minus 10 close paren to represent a line that her teacher sketched. The teacher then changed the line so it had a slope of 2 , but still went through the same point. Which equation should Alejandra write to represent the new line?

A
y minus 3 is equal to 2 times open paren x minus 10 close paren
B
y minus 3 is equal to 1 fifth times open paren x minus 2 close paren
C
y minus 2 is equal to 1 fifth times open paren x minus 10 close paren
D
y minus 6 is equal to 2 times open paren x minus 10 close paren
25

Which equation represents the graphed function?

A
negative 2 thirds x plus 2 is equal to y
B
3 halves x minus 3 is equal to y
C
negative 3 x plus 2 is equal to y
D
2 x minus 3 is equal to y

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Functions and Two-Variable Equations — Test…