Graph the equation.y = 5x2 - 1
A. 
B. 
C. 
D. 
Answer: D
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Find the sum of the series.
A. 
B. 
C. 
D. 
Find an equation for the ellipse described.Center at (0, 0); focus at (0, 7); vertex at (0, 8)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Explain how to obtain the graph of the given quadratic function from the graph of 
f(x) = (x - 9)2 - 3
A. Take the graph of y = x2 and shift it 9 units to the right and 3 units down. B. Take the graph of y = x2 and shift it 9 units to the left and 3 units down. C. Take the graph of y = x2 and shift it 9 units to the right and 3 units up. D. Take the graph of y = x2 and shift it 9 units to the left and 3 units up.
Solve the problem.The quadratic function 
models the median, or average, age, y, at which U.S. 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, 47.9 years old B. 1952, 36 years old C. 1952, 47.9 years old D. 1952, 24.8 years old