Find the midpoint of the segment having the given endpoints.(7, 6) and (1, 2)
A. (8, 8)
B. (6, 4)
C. 
D. 
Answer: D
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Find all numbers a such that the given point is on the circle x2 + y2 = 1.
A. a = ± 
B. a = ± 
C. a = ± 
D. a = ± 
Determine whether the ordered pairs given are solutions of the linear inequality in two variables.2x + 3y ? 6:(6, 3)
A. Yes B. No
Perform the indicated operation and write the answer in lowest terms.
+ 
A. 
B. 
C. 
D. 
Solve the problem using your calculator.Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0. The following data were obtained regarding their GPAs on entering the program versus their current GPAs. Use linear regression to find a linear function that predicts a student's current GPA as a function of his or her entering GPA. Entering GPA Current GPA 3.5 3.6 3.8 3.7 3.6 3.9 3.6 3.6 3.5 3.9 3.9 3.8 4.0 3.7 3.9 3.9 3.5 3.8 3.7 4.0
A. y = 2.51 + 0.329x B. y = 5.81 + 0.497x C. y = 4.91 + 0.0212x D. y = 3.67 + 0.0313x