Question

फाइंड एक्स इज द स्लोप ऑफ द लाइन जॉइनिंग एक्स, 2 एंड 8 कोमा - 11 - 3 अपॉन 4 ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

Straight line formulae will help us to solve different types of problems on straight line in co-ordinate geometry.

1. If a straight line makes an angle α with the positive direction of the x-axis then the slope or gradient of the line i.e. m = tan α.

2. Slope of the line joining the points (x1, y1) and (x2, y2) is

m =

y2−y1

x2−x1

=

Difference of ordinates of the given point

Difference of abscissa of the given point

3. Condition of collinearity of three points (x1, y1), (x2, y2) and (x3, y3) is x1 (y2 - y3) + x2 (y3 - y1) + x3 (y1 - y2) = 0.

4. The equation of x-axis is y = 0.

5. The equation of y-axis is x = 0.

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