Rewrite the right side of the equation
in the following way:
.
Then the equation is
and
.
So,
and
The equation has two solutions:
and
.
Perpendicular lines have slopes that are negative reciprocals of each other, so the equation of the line in point-slope form is:
Rewriting this in standard form,
The correct answer is 50
7.5×2 = 15
25×2 = 50
1,600 800+800=1,600 this is your answer