paper plus a fee based on the number of lines in the MODELING apers charge a fee for placing an advertisement in their advertisement. The table shows the total costs for different length advertisements at the Daily Times The total cost y (in dollars) for an advertisement that is x lines long at the Greenville Journal is represented by the equation y = 2x + 20. Which newspaper charges less per line? How many lines must be in an advertisement for the total costs to be the same? (See Example 2.)

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Q: Example 2: Deanna has a cookie recipe that requires 12 eggs to make 3 batches of cookies. How many…

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Q: (a) The cost of 1 apple is a cent.The cost of 1 pear is p cents. The total cost of 7 apples and 9…

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Q: centimeters. Write an equation for V in terms of x and y. STEP 1: V=   Let C represent the cost…

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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.