Question

slope of the line x=3​

Answer 1

Answer:

just use formula of slope i.e. slope(m)=tan theta

or , Y2-Y1/X2-X1

Answer 2

$The \: equation \: x = 3 \: shows \: a \: line \\parllel \: to \: y - axis \: at \:a \: distance \: of \: 3 \:units$

$\blue { (Slope \: of \: a \: line \: parallel \: to } \\\blue { y - axis \: is \: undefined) }$

Therefore.,

$\red{ Slope \:the \: line \: x = 3 } \green { \: is \: undefined }$

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