Question

What is the equation of the line described below written in slope-intercept form?



the line passing through point (2, 2) and perpendicular to the line whose equation is y = x

Answer 1

For perpendicular lines:
m1*m2=-1
where m1 and m2 are the slopes of the perpendicular lines

Answer 2

y+x-4 = 0

Answer 3

so y=x-4?

Answer 4

Nope.