Find the vertices and graph the hyperbola.
- 
= 1
A. (0, -6), (0, 6)
B. (0, -8), (0, 8)
C. (0, -2
), (0, 2
)
D. (-6, 0), (6, 0)
Answer: B
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Determine the values of x for which the function is continuous. If the function is not continuous, determine the reason.f(x) = 16 - x2
A. Not continuous at x = 16; small change B. Not continuous at x = ±4; small change C. Continuous for all x D. Not continuous at x = ±4; function not defined
Solve the problem.If the list price is $46.65 and if $7.56 is saved by buying from a discount catalog, what is the discount price for the item?
A. $53.21 B. $54.21 C. $39.09 D. $39.19
Solve the problem.An airline charter service charges a fare per person of $350 plus $30 for each unsold seat. The airplane holds 75 passengers. Let x represent the number of unsold seats and write an expression for the total revenue R for a charter flight.
A. R(x) = (75 - x)(350 + 30x) or 26,250 + 2250x - 30x2 B. R(x) = 75(350 + 30x) or 26,250 + 2250x C. R(x) = (75 - x)(350 + 30x) or 26,250 + 1900x - 30x2 D. R(x) = x(350 + 30x) or 350x + 30x2
Write the expression in expanded form.log 
A. log(2x + z) - 7 log y B. (log x)2 + log z - (log y)7 C. 2 log x + log z - 7 log y D. 2 log x ? log z - 7 log y