Mathematics B - Regents High School Examination, The University Of New York, 2010 Page 6

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16 Which equation is represented by the accompanying graph?
computations.
y
x
(1) y = 2
(3) y = log x
x
−x
(2) y = 2
(4) y = log
x
2
+
17 Which quadratic equation has the roots
2
3
and
2
3
?
− 4x + 7 = 0
− 4x + 1 = 0
2
2
(1) x
(3) x
2
+ 4x + 7 = 0
2
+ 4x − 1 = 0
(2) x
(4) x
+
= ?
18 What is the solution set of
4
x
21
x
(1) {−3}
(3) {7}
(2) {−3, 7}
(4) { }
19 The graph of the product of (4 + 3i) and (2 − 3i) lies in which quadrant?
(1) I
(3) III
(2) II
(4) IV
20 Which equation represents an ellipse?
= 4 − 5y
= 9 + 8y
2
2
2
2
(1) 3x
(3) 6x
2
= 9 − 4y
(4) xy = 12
(2) 4x
[6]
Math. B – June ’10

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