Mathematics B Exam Worksheet - Regents High School Examination, The University Of The State Of New York, 2005 Page 2

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Part I
Answer all questions in this part. Each correct answer will receive 2 credits. No partial credit
will be allowed. For each question, write on the separate answer sheet the numeral preceding the
word or expression that best completes the statement or answers the question.
[
]
40
Use this space for
2
1 If f(x) = –2 x + 7 and g(x) = x
– 2, then f(g(3)) is equal to
computations.
(1) –7
(3) –1
(2) –3
(4) 7
2 The shaded portion of the accompanying map indicates areas of night,
and the unshaded portion indicates areas of daylight at a particular
moment in time.
Which type of function best represents the curve that divides the area
of night from the area of daylight?
(1) quadratic
(3) tangent
(2) cosine
(4) logarithmic
3 If R varies inversely as S, when S is doubled, R is multiplied by
1
1
(1)
(3)
2
4
(2) 2
(4) 4
3
x
2
4 What is the domain of the function f(x) =
?
x –
2
49
real numbers, x ≠ 7}
(1) {xx
real numbers, x ≠
±
(2) {xx
7}
(3) {xx
real numbers}
real numbers, x ≠ 0}
(4) {xx
[2]
Math. B – Jan. ’05

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