Answer:
Step-by-step explanation:
[tex]y = mx + b\\[/tex]
We know that [tex]m[/tex] is going to be 8
All that's left now is to find [tex]b[/tex]
Let's make a system of equations where we plug in the known values of x and y for each coordinate
[tex]\left \{ {{-6 = 8(-1) + b} \atop {26 = 8(3) + b}} \right. \\[/tex]
For this system of equations solution, please check the image that's annexed
Now that we know that [tex]b[/tex] is 2, we can plug that into [tex]y = 8x+b[/tex] and get
[tex]y=8x+2[/tex]
We can graphically verify this answer by using a graphing calculator (if you have one) or Desmos (check the other image that's annexed)
Good luck!