Ex 9.2
Ex 9.2, 2
Ex 9.2, 3
Ex 9.2, 4 Important
Ex 9.2, 5
Ex 9.2, 6 Important
Ex 9.2, 7
Ex 9.2, 8 Important
Ex 9.2, 9
Ex 9.2, 10 Important
Ex 9.2, 11
Ex 9.2, 12
Ex 9.2, 13 Important
Ex 9.2, 14 Important
Ex 9.2, 15
Ex 9.2, 16 Important
Ex 9.2, 17 Important
Ex 9.2, 18 Important
Ex 9.2, 19 You are here
Question 1 Important
Last updated at Dec. 16, 2024 by Teachoo
You saved atleast 2 minutes by viewing the ad-free version of this page. Thank you for being a part of Teachoo Black.
Ex 9.2, 20 By using the concept of equation of a line, prove that the three points (3, 0), ( 2, 2) and (8, 2) are collinear. We need to prove that the three point (3, 0), ( 2, 2), and (8, 2) are collinear i.e. these three points lie on the same line We check if (8, 2) lies on the line made by the points (3, 0) & ( 2, 2) We know that equation of line passing through (x1, y1) & (x2, y2) (y y1) = 2 1 2 1 (x x1) Equation of line passing though (3, 0) & ( 2, 2) (y 0) = ( 2 0) ( 2 3) (x 3) y = 2 5 (x 3) y = 2 5 (x 3) 5y = 2x 6 2x 5y 6 = 0 Since the three point lie on the same Then third point (8, 2) will satisfy the equation of line Putting x = 8, y = 2 in equation 2x 5y 6 = 0 2(8) 5(2) 6 = 0 16 10 6 = 0 0 = 0 which is true Hence point (8, 2) lie on line 2x 5y 6 = 0 Hence points (8, 2), (3, 0) & ( 2, 2) on the same line Hence (3, 0), ( 2, 2)& (8, 2) are collinear