Answer:
Step-by-step explanation:
The standard form of a linear equation is .
The given line has equation:
This is the point-slope form of the given line.
To find the standard form, we clear the fraction
We expand the parenthesis now to get:
We group the variables on the LHS and the constants on the RHS.
Multiply through by -1
This is of the form: .
Answer:
Function for given situation is :
Value of computer after 4 years = $720.3.
Step-by-step explanation:
Given that the value of a $3000 computer decreases about 30% each year. Now we need to write a function for the computers value V(t). then we need to find about how much will the computer be worth in 4 years.
It clearly says that value decreases so that means function represents decay.
For decay we use formula:
where P=initial value = $3000,
r= rate of decrease =30% = 0.30
t= number of years
A=V(t) = future value
so the required function is
or
Now plug t=4 years to get the value of computer after 4 years.
Hence final answer is $720.3.