Answer:
option C is the correct answer
Step-by-step explanation:
The trigonometric equation you are using has a general form
y = A* tan w*(x - r)
Where
A is the amplitude of the function
w is the frequency rad/s
r is the phase shift
In your case
A = -2
The frequency is
w = (2*pi)/period
period = pi/4
w = 8
r = -pi/2
y = -2* cos 8*(x + pi/2)
Considering the given graph of the function, we have that:
- Function Notation: f(1) = -3.
- Verbal statement: If x is equal to -1, then the value of f(x) is equal to -3.
<h3 /><h3>How to find the numeric value of a function looking at it's graph?</h3>
To find the numeric value of the function, we get a value of x(horizontal axis), and then look at the corresponding value y(vertical axis), then y = f(x).
In the graph of this function, we have that when x = 1, y = -3, hence:
- Function Notation: f(1) = -3.
- Verbal statement: If x is equal to -1, then the value of f(x) is equal to -3.
More can be learned about functions at brainly.com/question/25537936
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there is a very loose positive correlation because they are all going in the positive direction but are also scattered.
Answer:
see explanation
Step-by-step explanation:
(a)
let y = f(x), that is
5x + 3 = y
Rearrange making x the subject
Subtract 3 from both sides
5x = y - 3 ( divide both sides by 5 )
x = (y - 3) / 5, hence
(x) = (x - 3) / 5
(b)
(8) = (8 - 3) / 5 = 5/ 5 = 1
