5. (a) Let Z eR |y= Prove that Z is a subspace of R. (b) Let R2x2 be the set of all 2 x 2 matrices with real entries. Define a function T: R2x2 R²x2 by 9. Show that T is NOT a linear transformation. a

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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.