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152E3-F2011

# 152E3-F2011 - MA 15200 Exam 3A Fall 2011 1 Find the slope...

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MA 15200 Exam 3A Fall 2011 1 1) Find the slope of the line PQ that contains points (3, 5) and (0, 3) PQ  and the slope of any line perpendicular to this line. Note: The symbol means perpendicular, so m would represent the slope of the perpendicular line. 32 , 23 , , , , A m m B m m C m m D m m E m m               2) Which is the graph of the line with equation 3 2 4 yx   ? Each axis uses a scale of one unit per hash mark and each axis is drawn boldly. A B D C E

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MA 15200 Exam 3A Fall 2011 2 3) Find the equation in general form for the line through points (2, 5) and (8, 2). 2 9 0 2 8 0 2 9 0 2 8 0 2 12 0 A x y B x y C x y D x y E x y     4) In 2000, 23% of Americans regularly used online news as their source of information and this has been increasing at an average rate of 1.4% per year since then. Write a linear function in slope-intercept form where t represents number of years since 2000 to represent the percent of Americans who regularly use online news sources. Use your equation to find in how many years 52.4% of Americans regularly use online news sources. Which choice describes this?
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152E3-F2011 - MA 15200 Exam 3A Fall 2011 1 Find the slope...

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