Write the equation of a line in standard form that is perpendicular to x=8 and passes through point (6,9)

Question

Write the equation of a line in standard form that is perpendicular to x=8 and passes through point (6,9)

Answer 1

x=6 is the line parallel to x=8 going through the point (6,9)

y=9 is the perpendicular line to x=8 going through (6,9)

in standard from means in the form ax+by = c

for y=9, a=0, b=1, c=9

or

(0)x + (1)y = 9

which becomes

0+y=9

or

y = 9

the perpendicular line has a flat slope = 0, = the coefficient of the x term when the linear equation is solved for y