12 The table shown below was posted on the wall at Andy's Hardware to show the price of varying lengths of chain-link fencing. PRICE OF FENCING Length Price (feet) 75 $168.75 125 $281.25 175 $393.75 225 $506.25 The price of the same fencing at Bargain Hardware can be determined by the equation y = 2.50z, where y is the price, in dollars, for a feet of fencing. Determine the unit price for fencing, in dollars per foot, for each store. Show your work

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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.