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Published byDomenic White Modified over 8 years ago

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Chapter 3 REVIEW Sections 3.3, 4.1, 3.4, 3.1

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Problem #1 Find the slope of the line that passes through (0, -4) ad (3, 2)

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Problem #2 Find the slope of the line that passes through (0, 2) and (0, 4).

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Problem #3 Find the rate of change represented in the graph.

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Problem #4 Find the rate of change represented in the graph.

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Problem #5 The average cost of phone increased from $99 in 2007 to $299 in 2013. Find the average rate of change in the cost. Explain what it means.

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Problem #6 Graph the equation y = x

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Problem #7 Graph the equation y = 4/3x

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Problem #8 Suppose y varies directly as x. Write a direct variation equation that relates x and y. Then solve. If y=15 when x=2, find y when x=8.

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Problem #9 Suppose you earn $127 for working 20 hours. –Write a direct variation equation relating your earnings to the number of hours worked. –How much would you earn for working 35 hours?

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Problem #10 Graph the equation by using a table. Y = -x + 2

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Problem #11 Graph the equation by using x- and y- intercepts. 2x – 3y = 12

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Problem #12 Write an equation of a line in slope- intercept form with the given slope and y-intercept. Then graph the equation. m=4; y-intercept: (0, -2)

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Problem #13 Rewrite an equation of a line in slope- intercept form. Then graph the equation. 3x + 4y = 8

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Problem #14 Write an equation in slope-intercept form for the total cost of skiing for h hours with one lift ticket.

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