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Which line has an undefined slope? A. x=18 B. 2y-6x=0 C. y=-9 D. y=x

Which line has an undefined slope? A. x=18 B. 2y-6x=0 C. y=-9 D. y=x
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2 votes
Which line has an undefined slope?
A. x=18
B. 2y-6x=0
C. y=-9
D. y=x

User Lhassan Baazzi
by
8.0k points

1 Answer

2 votes
y = mx + b, where m is the slope

A. x = 18
The slope is undefined.

B. 2y - 6x = 0
2y = 6x
y = 3x
The slope is 3.

C. y = -9
y = 0x - 9
The slope is 0.

D. y = x
y = 1x
The slope is 1.

Equation A has an undefined slope.
User Nathan Hyland
by
7.5k points
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