Help me please I give brainliest and be serious than you

Answer:
15) y= 1/2 + 3.75
16) y = x
Step-by-step explanation:
For #15)
Equation used: y=mx+b ; Slope: y₂ - y₁ / x₂ - x₁
1) First, you need to pick any 2 points on the graph. I'll use (6,3) and (8,4).
2.1) Then you'll use the slope equation to find the slope (m) of your equation.
(y) ~ 4 - 3 = 1
(x) ~ 8 - 6 = 2
Slope= 1/2
3) So from the look of the answers, the y here is 3.75 so you can trust that.
4) The final equation is y= 1/2 + 3.75
For #16)
Use the same steps as #15. You can still choose whatever points/plots you want. Ima use (5,4) and (6,5).
(y) ~ 4 - 3 = 1
(x) ~ 6 - 5 = 1
slope= 1 or x
Answer: y=x
Your welcome for the answer! <3