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Solutions to the mat 1101 winter 2009 exam, covering topics such as linear equations, slope, graphing, and inequality solving.
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Test 2 MAT 1101 Winter 2009 Name ________________________
Simplify all answers and show your work! You may use MathGV as a tool.
4 x − 9 , find the inverse (f -1(x)).
x y
x y
and find the point of intersection.
Determine if the following pairs of lines cross in one point, are parallel, or are the same line.
x y
x y
x y
x y
x y
x y
a) What is the rate of change b) How much will a visit cost if c) Find the equation of the line y. of cost per hour? the repairman doesn’t do any work?
d) How much will a visit cost if e) How long did the repairman work if he the repairman works for 3.5 hours? made $78.75 on a job?
a) What is the rate of change of cost per year? b) Find the equation of the line C(x).
c) If the rate of change remains the same, what d) Based in this information, do you would be the cost of a DVD player in 2009? believe this function still applies?
a) Is the population increasing or decreasing? b) What is the average rate of change in the population per year?
c) What would be population be in the year 2000? d) During what year would we expect the population to be 10,000?