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Q.

What is the slope and intercept of x + 1 =0

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a

Slope = -1 , x-intercept = -1

b

Slope = -1 , y-intercept = -1

c

No Slope , x-intercept = -1 

d

No Slope , x-intercept = 1  

answer is C.

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Detailed Solution

General equation of line is:
y = mx + c
 Given equation of line is: x + 1 = 0
There is no variable y in the equation therefore, it cannot be written down in the form of general equation
Hence there is no slope for the line
There is no variable y in the equation that’s why there is no y intercept
If we equate x + 1 = 0
  x = -1
Therefore for the line x + 1 = 0, there is no slope and x-intercept= -1
 
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