The line in the graph below shows the relationship between the distance off a taxi ride, x. and the cost for that ride, y. Cost of a Ride with Ace Taxi Company 10 14 1e se Distance (kilometers) Based on the graph, which equation can be used to determine he cost, in dollars, for a taxi ride of x kilometers?

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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.