Answer:
i think its
Step-by-step explanation:
D
Answer:
The ship will be 
far from its port 3.5 hours from now
Step-by-step explanation:
Hi
The function is 
relates the number of kilometers y the ship will be from its port x hours from now, it has a form 
.
As the function is clearly defined, we only have to evaluate it for 
, so 
is the distance between the cruise ship and its port after 3.5 hours.
For
ax+by=c
slope=-a/b
perpendiculare lines have slopes that multiply to -1
so
2x+3y=9
slope=-2/3
-2/3 times what=-1
what=3/2
point slope form
the equation of a line that passes through the point (x1,y1) and the slope is m is
y-y1=m(x-x1)
slope=3/2
point i (8,5)
equation is
y-5=3/2(x-8)
converted to standard form
2y-10=3x-24
-3x+2y=-14
3x-2y=14
