car service charges customers a flat fee per ride​ (which is higher during rush hour​ traffic) plus charges for each minute and each mile. Suppose​ that, in a certain metropolitan area during rush​ hour, the flat fee is ​$5​, the cost per minute is ​$0.40​, and the cost per mile is ​$1.30. Let x be the number of minutes and y the number of miles. At the end of a​ ride, the driver said that the passenger owed ​$17.60 and remarked that the number of minutes was two times the number of miles. Find the number of minutes and the number of miles for this trip. Complete the equation that represents the total cost of

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Q: and

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Q: 1. Sketch y = (x - .75)}(x + 200)

A:

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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.