A certain forest covers an area of 2400km^2. Suppose that each year this area decreases by 8.5%. What will the area be after 13 years?
Stacey Warren - Expert brainly.com
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This is like the equation of a line where y is the area, x is the time, and 8.5% is your slope.
So you have y=0.085x+b (reason why I switched 8.5% into 0.085 is because that is how you write a percent as a decimal).
So now you need to find what b is. So you know orignally the area is 2400km^2 at x=0 years (this is what it is initially).
If you plug those numbers in you have:
Then after solving for b, you can write your equation as:
y=0.085x+(whatever you found b to be)
Then plug 13 in for x and you have your answer.
So I am solving for y? and my slope is negative right?