A. f(x) = sin´x B. f(x) = cosx + 1C. f(x) = (x + x²)cosxD. f(x) = x + x² %3D %3D 9. The domain of the real- valued function f(x) = In(3x + 8) is: A. R B.R-{}C. {x : x >,x €R} 8- D. {x : x x<, 3 10.The range of g(x) = cosx-1, x ER is A. 0

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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.