For each week of work, Aaron gets paid a base amount of $500, plus 25% of his total sales. If y represents his total pay each week, in dollars, and x represents his total sales in dollars, which equation models this relationship? O y = 500 + 25x O y = 500.25 + x O y = 0.25 + 500x O y = 500 + 0.25x

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.