1- Find the set of lower bounds and the set of upper bounds of the following sets in R, if it exists. i) (0, a), (a,0], [0, a), [a, 0] where a E R, i) A = {-1,---.}, E Z\{0}, iii) B =

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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.