The graph below models a hiker's height above the floor of a canyon over time. Hiking Elevation Time (minutes) Which scenario best describes the graph? The hiker hiked for 360 minutes, starting at a height of 18 feet. The hiker started at a height of 360 feet, and hiked down at a rate of 20 feet per minute. The hiker started on the canyon floor and hiked up at a rate of 20 feet per minute. C. The hiker started at a heigh of 360 feet, and ended at a height of 18 feet. Height Above Canyon Floor (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.