A17-inch candle is lit and steadily burns until it is burned out. Let 6 represent the burned length of the candle (in nches) and let r represent the remaining length of the candle (in inches). a. Write a formula that expresses r in terms of b. 17-b3r Preview b. When 4.2 inches have burned from the candle, the remaining length of the candle is inches. Therefore the point * should be on the graph of r in terms of b. c. Graph the relationship between r and b. 20 16

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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.