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ACT Math Videos 164 videos

ACT Math 1.1 Pre-Algebra
1061 Views

Pre-Algebra Drill 1, Problem 1. Calculate 23 + 53(7 – 4).

ACT Math 1.1 Trigonometry
355 Views

ACT Math: Trigonometry Drill 1, Problem 1. What is the length of y?

ACT Math 1.2 Coordinate Geometry
252 Views

ACT Math: Coordinate Geometry Drill 1, Problem 2. Solve the inequality and determine which solution is shown on the number line.

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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?

Language:
English Language

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...

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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