Answer:
--- function
The monthly rate is 10%
Step-by-step explanation:
Given
Let
So, we have:
--- Monday
--- One month later
Required
The function
The function is represented as:
In , we have:
In , we have:
Substitute:
Solve for b
So, the function is:
To calculate the monthly rate (r), we have:
Compare to: 
Make r the subject
Substitute
Express as percentage
From the graph of the given function , the value of f(1) = -1.
As given in the question,
From the graph of the given function,
Two coordinates from the graph are as follow:
( x₁ , y₁) = (1, -1)
( x₂ , y₂ ) = ( 0, -3 )
Equation of the line representing the function is given by:
(y - y₁) /(x-x₁) = ( y₂ -y₁)/ (x₂ -x₁)
⇒(y +1)/ (x-1) = (-3 +1)/ (0-1)
⇒ (y +1)/ (x-1) = 2
⇒y +1 = 2x -2
⇒ y = 2x -3
To get the value of x we have,
y = f(x)
⇒f(x) = 2x -3
⇒f(1) = 2(1) -3
⇒f(1) = -1
Therefore, from the graph of the given function , the value of f(1) = -1.
Learn more about graph here
brainly.com/question/17267403
#SPJ1
48/2=24
24×.045=1.08
24+1.08=$25.08 to purchase the game
