The equation in standard form of the line is given by:
[tex]\frac{8}{3}x + y = 15[/tex]
A linear function is modeled by:
y = mx + b
In which:
In this problem, the line is parallel to 8x + 3y =15, hence the slope is given by:
[tex]m = -\frac{8}{3}[/tex]
It passes through the point (6, -1), hence:
y = mx + b
[tex]-1 = -\frac{8}{3} \times 6 + b[/tex]
b = 15
Hence:
[tex]y = -\frac{8}{3}x + 15[/tex]
In standard form:
[tex]\frac{8}{3}x + y = 15[/tex]
More can be learned about linear equations at https://brainly.com/question/24808124