Find a + b, 4a + 7b, |a|, and la - bl. (Simplify your answer completely.) a = (-3, 4), b = (9, -1)

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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.