Where a is the amplitude
b is used to find the period
The phase shift can be fined by doing
then the midline is y=d.
Finding A: The amplitude is the half of the distance between the. y values of the max and the min.
So a=2.5
Note: A is Positve never negative so if you get a negative a, take the absolute value.
Period:
Find the distance between x values,
The distance between the x values of the max and min x values is half the distance of the period. So the period is 6.
Note : If b is negative, take the absolute value.
Finding the midline.
To find the midline find the midpoint of the max and min y values.
So our midline is
So as of right now, our trig formula is
Plug in any x or y value,
This is not right so we need to shift this to the nearest value that is right
If we subtract,
We will have a cosine value of 1.
So our phase shift is
Our phase shift would be 2 units to the right.
Step-by-step explanation:
To estimate percentage I would round up the numbers to the nearest neat number? like 10 or 15 for example and then find the percentage of that number.
Answer:
yes
Step-by-step explanation:
B because .06 + .12 = .18 which is 18% out of 250 people
Answer:
A'(-5,3), B'(-5,5), C'(-1,5) and D'(-1,3).
Step-by-step explanation:
If a point P(h,k) is rotated counterclockwise by 90° about the origin then the image point P' will become with coordinates (-k,h).
Now, the rectangle ABCD with vertices A(3,5), B(5,5), C(5,1) and D(3,1) is rotated 90 degrees counter-clockwise around the origin and the image rectangle will be A'B'C'D' with coordinates A'(-5,3), B'(-5,5), C'(-1,5) and D'(-1,3). (Answer)