Decide whether or not the equation defines y as a function of x.y = 
A. No
B. Yes
Answer: B
Mathematics
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Find numbers a and b, or k, so that f is continuous at every point.
A. a = 8, b = 85 B. a = -27, b = 45 C. a = 8, b = 5 D. Impossible
Mathematics
Solve the problem.Students in English class must have an average between 80% and 90%, inclusive, of all work to receive a grade of B. Stan has 76% on homework, 81% on quizzes, and 89% on his research paper. What range of scores on the test would give him a B?
A. 74% or better B. 90% or better C. 65% or better D. 79% or better
Mathematics
(4, -8), (-4, 1)
A. y = -x - 
B. y = 
x - 
C. y = x - 
D. y = - 
x - 
Mathematics
Solve the problem.Let angle POQ be designated ?. Angles PQR and VRQ are right angles. If ? = 45°, find the exact length of US. 
A. 0
B. 
C. 
D. 1
Mathematics