5-15b In problem 5-13, you used trigonometric tools to find a side length. But do you have a way to find an angle? Examine the triangles below. Do any of them look familiar? How can you use information about the side lengths to help you figure out the reference angle ? Your Trig Table Toolkit from Chapter 4 may be useful. 1 What is the value of 0? degrees. 5 Submit

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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.