F.TF.B.5: Modeling Trigonometric Functions 1a
Regents Exam Questions F.TF.B.5: Modeling Trigonometric Functions 1a
F.TF.B.5: Modeling Trigonometric Functions 1a
1 The equation y - 2 sin = 3 may be rewritten as 1) f(y) = 2 sinx + 3 2) f(y) = 2sin + 3 3) f(x) = 2sin + 3 4) f() = 2sin + 3
2 The voltage used by most households can be modeled by a sine function. The maximum voltage is 120 volts, and there are 60 cycles every second. Which equation best represents the value of the voltage as it flows through the electric wires, where t is time in seconds? 1) V = 120sin(t) 2) V = 120sin(60t) 3) V = 120sin(60t) 4) V = 120sin(120t)
3 Which equation is represented by the graph below?
Name: ________________________ 4 Which equation represents the graph below?
1) y = -2sin 2x
2)
y=
-2
sin
1 2
x
3) y = -2 cos 2x
4)
y=
-2 cos
1 2
x
5 The accompanying diagram shows a section of a sound wave as displayed on an oscilloscope.
1) y = 2 cos 3x
2) y = 2 sin3x
3)
y
=
2
cos
2 3
x
4)
y
=
2 sin
2 3
x
Which equation could represent this graph?
1)
y
=
2 cos
x 2
2)
y
=
2 sin
x 2
3)
y
=
1 2
cos
x 2
4)
y
=
1 2
sin
2
x
1
Regents Exam Questions F.TF.B.5: Modeling Trigonometric Functions 1a
6 A radio transmitter sends a radio wave from the top of a 50-foot tower. The wave is represented by the accompanying graph.
Name: ________________________
8 Which equation is represented by the graph shown below?
What is the equation of this radio wave? 1) y = sinx 2) y = 1.5sinx 3) y = sin 1.5x 4) y = 2sinx
7 Which equation is represented by the accompanying graph?
1)
y
=
1 2
cos 2x
2) y = cos x
3)
y
=
1 2
cos x
4)
y
=
2 cos
1 2
x
9 Which equation is represented by the accompanying graph?
1) y = cos x
2)
y
=
cos
1 2
x
3) y = cos 2x
4)
y
=
1 2
cos x
1)
y
=
2 sin
1 2
x
2) y = 2sinx
3)
y
=
sin
1 2
x
4) y = sin2x
2
Regents Exam Questions F.TF.B.5: Modeling Trigonometric Functions 1a
10 Which is an equation of the graph shown below?
Name: ________________________
12 Which equation is represented by the graph in the diagram below?
1) y = sin2x 2) y = -sin2x 3) y = -2 sinx 4) y = 2sinx
11 Which is an equation of the graph shown below?
1) y = 3 sin2x
2)
y
=
3 sin
1 2
x
3) y = -3sin 3x
4)
y=
-3
sin
1 2
x
13 Which equation is represented by the graph below?
1)
y
=
cos
1 2
x
2) y = cos 2x
3)
y
=
sin
1 2
x
4) y = sin2x
1)
y=
-2
sin
1 2
x
2)
y=
-
1 2
sin
2x
3)
y
=
1 2
sin 2x
4)
y
=
2 sin
1 2
x
3
Regents Exam Questions F.TF.B.5: Modeling Trigonometric Functions 1a
14 Which equation is represented in the graph below?
Name: ________________________
16 Which equation is represented by the graph in the accompanying diagram?
1) y = 2 cos 2x
2)
y
=
1 2
cos 2x
3)
y
=
2 cos
1 2
x
4)
y
=
1 2
cos
1 2
x
15 Which equation is represented in the accompanying graph?
1) y = 3 sin2x 2) y = 2 sin3x 3) y = 3sinx 4) y = 2 sin4x
17 Which trigonometric function is shown in the graph below?
1) y = 2 sin2x
2)
y
=
1 2
sin
1 2
x
3)
y
=
2 sin
1 2
x
4)
y
=
1 2
sin 2x
1) f(x) = 2sinx 2) f(x) = 2cos x 3) f(x) = cos 2x 4) f(x) = sin2x
4
Regents Exam Questions F.TF.B.5: Modeling Trigonometric Functions 1a
18 Which equation is represented by the graph in the accompanying diagram?
Name: ________________________
20 Which equation could be represented by the graph below?
1) y = 3 sin2x
2)
y
=
3 sin
1 2
x
3) y = 2 sin3x
4)
y
=
1 2
sin 3x
19 Which equation is represented on the graph shown below?
1)
y
=
2 sin
1 2
x
2)
y
=
2 cos
1 2
x
3)
y
=
1 2
sin 2x
4)
y
=
1 2
cos 2x
1) y = 3sinx 2) y = -3 sinx 3) y = 3 cos x 4) y = -sin3x
5
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