Question

The equation of line XY is (y-3) =-2/3 What is the slope of a line perpendicular to XY?
Select one:
a. -2
b. 3
c.-2/3
d.3/2

Answer 1

@kc_kennylau

Answer 2

you're missing the "x" somewhere, aren't you? Check your question again :)

Answer 3

The equation of line XY is (y-3) = -2/3 (x - 4). What is the slope of a line perpendicular to XY?
Select one:
a. -2
b. 3
c.-2/3
d.3/2

Answer 4

here

Answer 5

Its currently in point-slope form, that's okay

Point-Slope Equation of a Line

y – y1 = m(x – x1), where m is the slope and (x1, y1) is a point on the line.

Answer 6

So now you have the slope, remember the relation between a line and its perpendicular line? :)

Answer 7

yes

Answer 8

sorry, I have to go now, @Phaen will continue to help you if he wants to :)

Answer 9

watever

Answer 10

do you know the term negative reciprocal?

Answer 11

y - 3 = -2/3(x - 4)
slope here is -2/3

perpendicular slope will have negative reciprocal slope. All that means is " flip " the slope and change the sign. So the negative reciprocal slope is 3/2 (see how I flipped the slope and changed the sign)