Decide whether the equation defines y as a function of x.y = -17
A. function
B. not a function
Answer: A
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Find the center and radius of the circle and sketch its graph.(x + 5)2 + (y + 2)2 = 7
A. (h, k) = (-5, -2), r = 
B. (h, k) = (-5, -2), r = 7
C. (h, k) = (-2, -5), r = 7
D. (h, k) = (-2, -5), r = 
Translate the English sentence into an equation using the variables indicated.The product of your hourly wage and the amount of time worked is $800. Let h = the hourly wage and t = the number of hours worked.
A. t = 800h
B. 
= 800
C. h = 800t
D. ht = 800
Determine which is the better buy.6 pencils for $0.54 or 16 pencils at $1.60
A. 6 pencils B. 16 pencils
Solve the problem.In one U.S. city, the quadratic function 
models the median, or average, age, y, at which men were first married x years after 1900. In which year was this average age at a minimum? (Round to the nearest year.) What was the average age at first marriage for that year? (Round to the nearest tenth.)
A. 1936, 52.3 years old B. 1965, 21.2 years old C. 1954, 36 years old D. 1965, 52.3 years old