Find the equation of the line with the given slope and y-intercept.m = 2, b = -7
A. y = 7x + 2
B. y = 2x + 7
C. y = 7x - 2
D. y = 2x - 7
E. y = -7x + 2
Answer: D
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The following question refers to a school district with three high schools. The total number of students in the district is 3000. The teachers within the district are apportioned to the high schools based on the schools' respective enrollments. The standard quota for each school is given in the following table.
What does the standard divisor represent in this apportionment problem?
A. the number of teachers per 100 students B. the number of students per teacher C. the number of teachers required for 3000 students D. the number of students per 100 teachers E. none of these
Solve the problem.A 9-ft. board is cut into 2 pieces so that one piece is 5 feet longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces.
A. shorter piece: 15 ft; longer piece: 32 ft. B. shorter piece: 1 ft.; longer piece: 8 ft. C. shorter piece: 4.5 ft; longer piece: 27 ft. D. shorter piece: 22 ft; longer piece: 27 ft.
Use the pictograph to answer the question.This pictograph shows projected sales of compact disks (CDs) for a popular rock band for seven consecutive years. 
? = 10,000 CDsApproximately how many fewer CDs will be sold in 2008 than in 2010?
A. 40,000 CDs B. 60,000 CDs C. 50,000 CDs D. 4 CDs
Find an equation for the parabola with vertex at the origin.Through (9, 9), symmetric with respect to the y-axis
A. y = 9x2
B. y = 
x2
C. x = 
y2
D. x = -9y2