At the Dallas-Fort Worth International Airport a DC- 10 at 4500 feet is descending toward the east runaway at a rate of 150 feet per minute also 720 jet at 600 feet is climbing at a rate of 75 feet at what point would the 2 planes be in the same altitude

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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.