Well it depends on what the model is but if it's an IRA or whatever so if you make your own model that's easy
The equation of a vertical line passing through the point (-5,-1) is x = -5
Picture 2;Picture 4;Picture 1;Picture 5;and then Picture 6
Ii.First ,expand: 5(x-2)=32
5x-10=32
bring 10 to the other side (add it to 32)
5x=42
divide both sides by 5 to get x
x=42/5
x=8.4
iii.Expand 5+2(x+3)=21
5+2x+6=21
bring 5 and 6 to the other side
2x=21-5-6
2x=10 divide both sides by 2
x=5
