Let’s just use the first point you gave, (2, -5), since only one equation fits it. We can plug the x value, 2. Into each equation to find y, and see if it matches our point. If we plug 2 into A, y is equal to -5, which matches our point.
I’ve attached a photo with the definition and my answers
Hope this helps!
Answer:
1.5 I'm pretty shure
Step-by-step explanation: