Coordinate Plane The coordinate plane has four quadrants. The first quadrant contains all positive values The second quadrant contains negative x values and positive y values The third quadrant contains all negative values The fourth quadrant contains positive x values and negative y values
Variables Independent variable : the variable whose value can be chosen Dependent variable : the variable whose value is determined by the value of another variable
Example For each pair of variables, identify the independent variable and dependent variable. a. Number of traffic violations, cost of auto insurance b. Electric bill total, kilowatts of electricity used
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