15 25 75 Assume the position of a person traveling along a straight hiking trail is given by the graph depicted. The input to the function is time in hours, and the output is position in miles from the only outhouse on the trail. The trail travels east-west. Select all the times when is the hiker moving west. O (0, 2) O (2, 4) O (4, 7) O 17, 10)

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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.