Your house is 2km due north of a stream running east-west. The aunt’s house is located 12 km west and 1 km north of your house. First, you get fresh water from the stream before going to aunt’s house. We have to find out what is the shortest distance of the route.

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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.