Answer:
Step-by-step explanation:
We know that exponential formula of depreciation

where
P is the initial amount
x is the interest rate
A is the amount after t years
we are given
The annual rate of depreciation, x, on a car that was purchased for $9,000
so, P=9000
we can plug value it

we are given
when x=5 , A=4500
so, we can plug it and solve for x





so, interest rate is 13%
now, we can plug x
and we get


Graph:
Answer:
y = 2x -4
Step-by-step explanation:
y2 - y1 / x2 - x1
-4 - (-6)/ 0 - (-1)
= 2
y = mx + b
y = -2x + b
-4 = -2(0) + b
-4 = 0 + b
-4 = b
So the equation is y = 2x -4
Answer:
(2,1)
Step-by-step explanation:
So you would plug in 0 for a from the beginning since this is numerical slope definition of a derivative