At 8:00 am, here's what we know about two airplanes: Airplane #1 has an elevation of 34030 ft. and is descending at the rate of 700 ft/min. Airplane #2 has an elevation of 5150 ft. and is climbing at the rate of 250 ft/min. (1) Let t represent the time in minutes since 8:00 am, and let E represent the elevation in feet. Write an equation for the elevation of each plane in terms of t. plane #1: E(t) = plane #2: E(t) : (2) At what time will the two airplanes have the same elevation? t minutes after 8:00 am (3) What is the elevation at that time? E : 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.