Inverses of linear functions Determine the inverse of a linear function based on the equation and graph When you input a result into one function, take the result an input that into the other function. Evaluating composite functions Find the result when one function is the input of another. If it's equal to the input, say it's greater not greater or equal to. Values that go above or below the variable determine the inequality. Range of a function Input the x and determine the inequality of the range. If the nominator is a square root, it must be greater or equal to 0. Set a root equal or greater to 0.Ģ.If the Denominator is a square root, it must be greater than 0.ģ. Domain and range from graph Domain: All possible values for x. If F(x) is graphed, find F(-1) by finding where y is according to the x.įind the y's of each equation and input them into the equation. Evaluating expressions with function notation When x equals a variable, what is y?
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