. A missile is launched along the path determined by the equation f(x) =-4x² +72x, where f(x) is e height of the missile in feet x seconds after it has been launched. A plane is flying at a height of DO feet. Is the plane in danger? Why or why not?

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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.