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Playlist ACT® Trigonometry 25 videos
ACT Math: Trigonometry Drill 1, Problem 1. What is the length of y?
ACT Math Trigonometry Drill 1, Problem 2. Can you find the tangent?
ACT Math: Trigonometry Drill 1, Problem 3. Can you find the cosine?
ACT Math 2.2 Trigonometry 228 Views
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Description:
ACT Math Trigonometry Drill 2, Problem 2. Which graph represents the equation shown?
Transcript
- 00:02
And here is your Shmoop du jour.
- 00:04
Which is the graph of y equals 4 sine x ?
- 00:08
And here are your options.
- 00:13
Okay, well let's break this problem down.
- 00:16
We have 4 and sine of x...
Full Transcript
- 00:18
That's it. The 4 refers to the amplitude
- 00:22
of the sine curve or how high and low the graph can go.
- 00:25
When we look at all the answer choices only one actually has this
- 00:29
amplitude of 4. Big high up thingy here and the low thingy there. That's amplitude.
- 00:36
So it's option C.
- 00:37
As further confirmation options C is a normal sine curve
- 00:41
besides from its amplitude. So that's it... piece a cake. It's option C.
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