Grade 9 Math: Linear Relations and Equations Independent Variables and Dependent Variables

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What is an independent variable?

a variable whose variation does depend on that of another.
a variable whose variation does not depend on that of another.
a constant whose variation does not depend on that of another.
a constant whose variation does depend on that of another.
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True or false? A dependent variable is a variable whose value depends on that of another.

True
False
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What is the independent variable in this equation? $$y=2x^{2}=4x-34$$

x
y
4x
-34
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What is the dependent variable in this equation? $$y=2x^{2}=4x-34$$

x
y
-34
none of the above
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What is the independent variable in this equation? $$144=12\times12$$

144
12
does not exist
none of the above
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