Sagot :
Step-by-step explanation:
[tex]m = \frac{y2 - y1}{x2 - x1} \\ \\ 1 = \frac{ - 2 - 8}{a - 6} \\ \\ 1(a - 6) = - 10 \\ \\ a - 6 = - 10 \\ \\ a = - 10 + 6 \\ \\ a = - 4[/tex]
Step-by-step explanation:
[tex]m = \frac{y2 - y1}{x2 - x1} \\ \\ 1 = \frac{ - 2 - 8}{a - 6} \\ \\ 1(a - 6) = - 10 \\ \\ a - 6 = - 10 \\ \\ a = - 10 + 6 \\ \\ a = - 4[/tex]