how to find the slope

Let us learn how to find the slope

Interpret the slopes of the following lines joining

(i) (6,4) and (−7, 4) (ii) (−2,8) and (−2, 7).

(i) To find Slope of the given line “m”= y₂- y₁ / x₂ – x₁ = 4-4 / -7- 6 = 0 /-13 = 0

∴ Therefore line is parallel to the x-axis.

(ii) To find Slope of the given line “m” = y₂- y₁ / x₂ – x₁ = 7-8 / -2+2 = not defined.

Therefore, The line is perpendicular to the x-axis.

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