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Answer:
a) Slope of the line m = ∞
b) Slope of the line m =0
Step-by-step explanation:
Explanation:-
Step(i):-
Given points are ( 7,7) and (7,-8)
Slope of the line
[tex]m = \frac{y_{2} - y_{1} }{x_{2}-x_{1} }[/tex]
[tex]m = \frac{-8-7 }{7-7 } = \frac{-15}{0} = infinite[/tex]
m = ∞
Step(ii):-
Given points are (-6,7) and (9,7)
Slope of the line
[tex]m = \frac{y_{2} - y_{1} }{x_{2}-x_{1} }[/tex]
[tex]m = \frac{7-7 }{9-(-6) } = \frac{0}{15} = 0[/tex]
Slope of the line m =0