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Math B Regents Exam Questions by Type - Multiple Choice Page 22
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178. Which diagram represents a one-to-one
function?
[A]
181. In the accompanying diagram of
parallelogram ABCD, DE ≅ BF.
[B]
[C]
Triangle EGC can be proved congruent to
triangle FGA by
[A] AAS ≅ AAS [B] HL ≅ HL
[C] SSA ≅ SSA [D] AAA ≅ AAA
182. If R varies inversely as S, when S is doubled,
R is multiplied by
[A] 4 [B] 2 [C] 1 2
[D] 1 4
[D]
179. If log
5
x = 2,
what is the value of x ?
2
[A] 25 [B] 5
5
[C] 2 [D] 5
180. What is the middle term in the expansion of
4
( x+
y) ?
[A] xy
2 2 [B] 2x 2 y
2
[C] 6xy 2 2
[D] 4x 2 y
2
183. Jacob is solving a quadratic equation. He
executes a program on his graphing calculator
and sees that the roots are real, rational, and
unequal. This information indicates to Jacob
that the discriminant is
[A] zero [B] not a perfect square
[C] negative [D] a perfect square
184. What is a positive value of x for which
−cosx
1
9 = ?
3
[A] 30° [B] 60° [C] 90° [D] 45°
3
185. What is the sum of ( y − 5) + ?
y + 2
[A]
y − 2
y + 2
[C] y − 5
[B]
[D]
y
2
− 3y
− 7
y + 2
2
y − 7
y + 2
186. The roots of a quadratic equation are real,
rational, and equal when the discriminant is
[A] 4 [B] 2 [C] 0 [D] -2