ŷ = 21.1270 + 0.5508x, + 0.4940x2 Here, SST = 6,736.125, SSR = 6,218.375, s,, = 0.0815, and s,, = 0.0561.

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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.