You are interested in retrieving a souvenir from a shipwreck located 115 feet below the water. You do not have diving equipment, so your dive is limited by the equation y = 0.05x² – 4x - 38 Assumming you can hold your breath for the duration of the dive; will you be able to retrieve your souvenir?

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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.