Sketch the sinusoidal graphs that satisfy the properties

In summary, to satisfy the given properties, the sinusoidal graph must have a period of 4, amplitude of 3, and an equation of the axis of y = 5. To find the angular velocity, we can use the formula T = 2π/ω and set T = 4, giving us an angular velocity of ω = π/2.
  • #1
eleventhxhour
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12a) Sketch the sinusoidal graphs that satisfy the properties below:
Period: 4
Amplitude: 3
Equation of the Axis: y = 5
Number of Cycles: 2

So, I know how to graph sinusoidal functions, but I can't figure out the max and min that would satisfy both the equation of the axis and the amplitude listed.
 
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  • #2
Let's start with the angular velocity $\omega$. For a sinusoid of the form:

\(\displaystyle f(x)=\sin(\omega x)\)

The period is:

\(\displaystyle T=\frac{2\pi}{\omega}\)

This comes from:

\(\displaystyle f(x)=\sin(\omega x)=\sin(\omega x+2\pi)=\sin\left(\omega\left(x+\frac{2\pi}{\omega}\right)\right)=f\left(x+\frac{2\pi}{\omega}\right)=f(x+T)\)

So, letting $T=4$, what must $\omega$ be?
 

Related to Sketch the sinusoidal graphs that satisfy the properties

1. What is a sinusoidal graph?

A sinusoidal graph is a graph that shows the variation of a function over a specific period of time. It is characterized by its periodic wave-like shape and is commonly used to represent periodic phenomena such as sound waves, electrical currents, and many other natural and physical processes.

2. What are the properties of a sinusoidal graph?

The properties of a sinusoidal graph include amplitude, period, phase shift, and vertical shift. The amplitude is the height of the wave, the period is the length of one complete cycle, the phase shift is the horizontal displacement of the wave, and the vertical shift is the vertical displacement of the wave.

3. How do you sketch a sinusoidal graph?

To sketch a sinusoidal graph, you need to determine the values of its properties first. Plot the vertical and horizontal axes on a graph paper and mark the values of the amplitude, period, phase shift, and vertical shift. Then, use these values to plot points on the graph and connect them with a smooth curve to create the sinusoidal graph.

4. What is the difference between a sine and cosine graph?

A sine graph and a cosine graph are both types of sinusoidal graphs. The main difference between them is the phase shift. A sine graph has a phase shift of 0 degrees, which means it starts at the origin, while a cosine graph has a phase shift of 90 degrees, which means it starts at its maximum value.

5. How do you use a sinusoidal graph in real life?

Sinusoidal graphs are used in many real-life applications, such as in music, where they represent sound waves; in physics and engineering, where they represent electrical currents and other physical processes; and in finance and economics, where they represent cyclic patterns in data. They are also used in navigation, astronomy, and many other fields.

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