sm09rew2_class

# sm09rew2_class - Class Made Review This review sheet was...

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Class Made Review This review sheet was made by the students in MAC 1140 Summer B 2009 Section 4630. 1. A rooﬁng contractor purchases a shingle delivery truck with a shingle elevator for \$36,00. The vehicle requires an average expenditure at \$5.25 per hour for fuel and maintenance, and the operator is paid \$11.50 per hour. (a) Write a linear equation giving the total cost C of operating this equipement for t hours. (b) Assuming that customers are charged \$27 per hour of machine use, write an equation for the revenue R derived from t hours of use. (c) Use the formula for proﬁt to write an equation for the proﬁt derived from t hours of use. 2. Given three points, (0 , 2), (4 , 2) and (4 , 5), determine if they are the vertices of a right triangle. 3. Given two points, ( - 4 , 10) and (4 , - 5) ﬁnd the distance between them and the midpoint. 4. Find all points that are equidistant to the points (4 , - 1) and ( - 2 , 3) 5. Write in standard form the equation of the circle with center ( - 2 , 6) and the circle goes

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sm09rew2_class - Class Made Review This review sheet was...

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