A line passing parallel to y = 0.75x will be of the form:
[tex]y = 0.75x + k[/tex]
where k is a constant.
It passes through (8,0)
Thus,
[tex]y = 0.75x + k \\ \\ 0 = 0.75 \times 8 + k \\ \\ 0 = 6 + k \\ \\k = - 6[/tex]
[tex]\textbf{The equation is \: \: y = 0.75x - 6} [/tex]