Answer:
How to calculate interest rate
Step 1: To calculate your interest rate, you need to know the interest formula I/Pt = r to get your rate. ...
I = Interest amount paid in a specific time period (month, year etc.)
P = Principle amount (the money before interest)
t = Time period involved.
r = Interest rate in decimal.
This is a vertical line. Vertical lines are composed by points who share the same x coordinate.
That's why the equation of the line is exactly
, where k is the shared x coordinate.
In your case, the common x coordinate is 3, so the line is 
Answer:
yoo
Step-by-step explanation:
I believe the correct answer is -2