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Mathematics
Grade-8
Easy
Question
What is the slope of the line passing through points (x, y) and (p, q)?
Hint:
The slope of a line can be defined as the change in y coordinates of any 2 points on that line corresponding to the change in the x coordinates of those 2 points. This is generally referred to as the rise to run ratio of the given line i.e. how much did the y-coordinates rise vis-a-vis how long a distance was covered by the x-coordinates. Slope = m = rise / run = y2-y1 / x2-x1
The correct answer is:
GIVEN- Given line passes through points (x,y) and (p,q). TO FIND- Slope of the given line. SOLUTION- We know that the given line passes through the points (x,y) and (p,q). Hence, x1 = x, y1 = y, x2 = p and y2 = q. ∴ Slope = m = y2-y1 / x2-x1 ∴ Slope = m = (q - y) / (p - x) FINAL ANSWER- Option 'b' i.e. '(q - y) / (p - x)' is the correct answer to the given question.