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- Relations can be represented by $\cdots$

- In a table of values for a linear relation $\cdots$

- The graph of a linear relation is $\cdots$

- In an equation of a linear relation, the (positive integer) exponents on $x$ and $y\quad \cdots$

- Which of the equations below represent a linear relation?

- If the equation $y=3x^{k}-12$ is to represent a linear relation, what value should $k$ take?

- For what value of $k$ is the relation $y=2x^{2}+k$ a linear relation?

- Which of the following is not a linear relation?

- The first differences from a table of values of a linear relation are always constant. In addition:

- If the first differences for a linear relation is zero, then: