Answer:
current value = 21000(1 - 0.05)^n
Step-by-step explanation:
This is a standard depreciation formula where n is the number of years.
In this question we know what the “y-intercept is,so if we go to our graph we can easily just plot the point 7.6 on the y axis of a number line. It also gives you the slope in decimal form so we would want to convert that from 0.2 to 1/5. And remember the slope is how many places you move to get to the next point on the number line. So from the point 7.6 we would move up 1 over 5 to the right because it is a positive number. Your line should run across the upper segment of the number line and your line should make a 20 to 30 degree angle shift
Here’s a picture of my work. The answer is seven. Hope this helps :-)
It’s the first one on the top left corner