Answer:
x=0
Step-by-step explanation:
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
1) Plug the points into slope formula, and write -2 as m:
[tex]-2=\frac{8-4}{x-2}[/tex]
2) Multiply both sides by (x-2):
[tex]-2(x-2)=8-4[/tex]
3) Distribute -2 to x and -2:
[tex]-2x+4=8-4[/tex]
4) Simplify:
[tex]-2x+4=4[/tex]
5) Subtract 4 from both sides:
[tex]-2x=0[/tex]
5) Divide both sides by -2:
[tex]x=0[/tex]