Suppose that x and y vary inversely and x= 1 when y= 9. Write a function that models the inverse variation. Graph the function and find y when x = 5. Write a function that models the inverse variation. y= (Simplify your answer) Graph the function. Choose the correct graph below Ay Ay 20- 14- Find y when x=5 y=(Type an integer or a decimal.)

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

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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.