At sea level, air pressure is 30 inches of mercury. At an altitude of h feet above sea level, the air pressure, P in inches of mercury, is given by the function P= 30e-0.0000323h dP Compute dh dP What are the units on dh Explain what does this derivative function tell you about air pressure. Determine how fast the air pressure is changing for a pilot of a small plane passing through an altitude of 1000 feet.

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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.