Let x represent the number. Use the given conditions to write an equation. Solve the equation and find the number. The graph shows the number of people in Country A without health insurance from year O through year 3. Number of People in Country A without Health Insurance 36.3 40 322 28.1 30 24 10 1 3 Year In year 0, there were 24 million people in Country A without health insurance. This number has increased at an average rate of 4.1 million people per year. In what year will the number of people without health insurance in Country A exceed the number in year 3 by 28.7 million? year 9 year 12 year 10 year 11 Number without Health Insurance (millions)

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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.