Find the coordinates of the vertex for the parabola defined by the given quadratic function.f(x) = 3 - x2 - 2x
A. (1, - 4)
B. (- 1, - 4)
C. (1, 4)
D. (- 1, 4)
Answer: D
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Use an equation to solve the problem.The average price of homes in one neighborhood decreased 8% since last year, a drop of $5,400. What was the average price of a home last year?
A. $64,500 B. $69,500 C. $68,500 D. $67,500 E. $71,500
Solve.There are currently 54 million cars in a certain country, decreasing by 2.6% annually. How many years will it take for this country to have 25 million cars? Round to the nearest year.
A. 11 years B. 130 years C. 30 years D. 3 years
If students believe that algebraic symbols should always be written out in the same order as they appear in a word problem, they are likely to use:
a. Word order matching b. Static comparison method c. Operative translation d. None of the above
Answer the question.For f(x) = x2 - 1 and g(x) = 2x + 3, what is the domain of g?f?
A. 
B. 
C. All real numbers
D. 
x ? - 