Find an equation of the line containing the given pair of points(9, -46) and (4, -16)
A. y = - 
x - 
B. y = 
x - 
C. y = -6x + 8
D. y = 6x - 100
Answer: C
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Use the formula for 
to solve.How many ways can a committee of 6 be selected from a club with 10 members?
A. 151,200 B. 1,000,000 C. 210 D. 60
Solve the problem.The graph shows the hours studied and the exam grades obtained on a finite math exam for 8 students. (The two points on the line do not represent any of the eight students.) The line of best fit, the line graphed on the coordinate system, can be used to approximate the test grade the average student receives for the number of hours they study. 
Find the equation of the line of best fit. Then use the equation to estimate a test grade for a student who has studied for 6 hour(s).
A. approximately 96 B. approximately 93 C. approximately 88 D. approximately 91
Perform the indicated operation involving cylindrical coordinates.Find the rectangular coordinates of the point whose cylindrical coordinates are
.
A. 
B. 
C. 
D. 
In order to determine the effectiveness of a new vaccine that is alleged to cure "math anxiety," a study was conducted. One thousand volunteer college students enrolled in math courses across the U.S. were chosen. The 1000 students were broken up into two groups. Those enrolled in calculus courses were given the real vaccine. The students in developmental (remedial) math courses were given a fake vaccine consisting of sugared water. None of the students knew whether they were being given the real or the fake vaccine, but the researcher conducting the study knew. At the end of the semester the students were given a test that measured their level of math anxiety. The students in the treatment group showed significantly lower levels of math anxiety than those in the control group. On the
basis of this experiment the vaccine was advertised as being highly effective in fighting math anxiety.Which of the following is the most likely confounding variable for the study? A. the students' background in mathematics B. the students' grade level (freshman, sophomore, junior, senior) C. the student's sex (male, female) D. the type of college attended (two year, four year, public, private university) E. none of these