Determine whether there is a maximum or minimum value for the given function, and find that value.f(x) = -2x2 + 3x + 8
A. Maximum: 
B. Maximum: 0
C. Maximum: 
D. Minimum: -5
Answer: A
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Choose the equation that matches the graph.
A. 
- 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Answer the question.To complete the square from an equation in the form x2 - ax = b, is it ever appropriate to subtract a positive number from each side?
What will be an ideal response?
Solve the problem.Jason purchased rose plants and sunflower plants for his garden. Rose plants cost $7 each, and sunflower plants cost $13 each. If his spending limit was $240, write an inequality to show the possible combinations of rose plants and sunflower plants he could have purchased.
A. 7x + 13y ? 240 B. 13x + 7y ? 240 C. 13x + 7y ? 240 D. 7x + 13y ? 240
Solve the problem.Economists use what is called a Leffer curve to predict the government revenue for tax rates from 0% to 100%. Economists agree that the end points of the curve generate 0 revenue, but disagree on the tax rate that produces the maximum revenue. Suppose an economist produces this rational function,
where R is revenue in millions at a tax rate of x percent. Use a graphing calculator to graph the function. What tax rate produces the maximum revenue? What is the maximum revenue?
A. 28.1%; $470 million B. 29.7%; $467 million C. 26.5%; $469 million D. 31.4%; $464 million