Question 823828: Question 1: the following is the graph of the equation y=x^2, in which y is a function of x. Which of these describes the range of the function?
A. X is all real numbers
B. y is all real numbers
C. Y> or = 0
D. X> or = 0
Question 2: as a homework assignment, Amy has done a study on the number of hours spent on homework a week and the average grade in a particular math class. She found the relationship to be g=70+3h, where g represents the grade earned and h represents the number of hours spent on homework. If a student spends 6 hours doing math homework each week, what grade can that student expect?
A. 90
B. 88
C. 86
D. 82
Question 3: what is the range of the function f(x)=1/2x+4 when the domain is {-2,0,4}?
A. {-3,4,6}
B. {2,4,10}
C. {3,4,6}
D. {4,6,8}
Question 4: Jane started a weekend pet-care business. She bought the necessary supplies for $210. Jane chRges $25 per weekend for each pet she cares for. Which function best represents her net profit in terms of x, the number of pets she cares for?
A. F(x)=x+25-210
B. f(x)=210-25x
C. F(x)=210x-25
D. F(x)=25x-210
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Question 1: the following is the graph of the equation y=x^2, in which y is a function of x. Which of these describes the range of the function?
A. X is all real numbers
B. y is all real numbers
C. Y> or = 0
D. X> or = 0
Ans: C
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Question 2: as a homework assignment, Amy has done a study on the number of hours spent on homework a week and the average grade in a particular math class. She found the relationship to be g=70+3h, where g represents the grade earned and h represents the number of hours spent on homework. If a student spends 6 hours doing math homework each week, what grade can that student expect?
A. 90
B. 88
C. 86
D. 82
Answer: g(6) = 70 + 3*6 = 88
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Question 3: what is the range of the function f(x)=(1/2)x+4 when the domain is {-2,0,4}?
A. {-3,4,6}
B. {2,4,10}
C. {3,4,6}
D. {4,6,8}
Ans: C
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Question 4: Jane started a weekend pet-care business. She bought the necessary supplies for $210. Jane chRges $25 per weekend for each pet she cares for. Which function best represents her net profit in terms of x, the number of pets she cares for?
A. F(x)=x+25-210
B. f(x)=210-25x
C. F(x)=210x-25
D. F(x)=25x-210
Ans: D
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Cheers,
Stan H.
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