179k views
0 votes
Which line has an undefined slope? X=18, 2y-6x=0, y=-9, y=x

1 Answer

3 votes
we know that

slope m=(y2-y1)/(x2-x1)
then

case a) x=18
m=(y2-y1)/(18-18)--------------> is undefined, because the denominator is zero

case b) 2y-6x=0
2y=6x------------> y=3x
the slope m=3-----------> m is defined

case c) y=9
m=(9-9)/(x2-x1)--------> m=0-----------> m is defined

case d) y=x
m=1---------------> m is defined

the answer is
x=18 has an undefined slope



User Nathan M
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories