Question

AB passes through the points (1, 3) and (3, 17). If CD is perpendicular to AB, what is the slope of CD?

Answer 1

start wid calculating slope of AB

Answer 2

do u knw the slope formula

Answer 3

HOLD ON I GOT DIS.

Answer 4

Slope is 7 @ganeshie8 ?

Answer 5

yep, slope of AB = 7

Answer 6

since CD is perpendicular to AB, the product of slopes will be -1

lets say slope of CD = x

x*7 = -1

x = ?

Answer 7

x = -1/7?

Answer 8

correct !

Answer 9

Thank you again!

Answer 10

np.. yw