Points and lie on a line

MATHEMATICS · Subjective · CBSE · Mathematics · Straight Lines · Straight Lines

Problem

Points

A(3,5)

and

B(7,9)

lie on a line. Without computing its exact value, state whether the slope of the line is positive, negative, zero or undefined, and give a brief reason.

Related theory

Straight Lines
Coordinate Geometry
Slope and angle between lines
Slope using coordinates

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