Answer:
D.
Step-by-step explanation:
The period of the functions is
The period of the function is ALWAYS
In your case, you have function and this function has the period
You need to find the function that will have the period that is half of so
So, correct choice is
Answer:
See below.
Step-by-step explanation:
We know that the equation is a true equation for a particular value of x.
Now, let's see what happens if we divide everything by 4. In other words:
Divide:
So, we get .
When we divided everything by 4, we used the division property of equality. Under this property, the equation remains the same even if we divided since we did the <em>same thing to both sides of the equation. </em>
Therefore, is also true for the same value of x because it is just a simplified version of
.