Question

Navneet is cycling in a park. He chooses a path that is a closed curve, is partly parabolic. At the point where Navneet started, the path forms a right angle. Navneet makes a complete round on the path. The graph shows the path of cycling. D is vertex of the Parabolic curve which intersects X-axis at points C and E. Also, ∠BAF is a Right angle. i) If BAF is an isosceles triangle then the distance between points B and F is: a) 6 b) 8 c) 10 d) 12 ii) Find the coordinates of the point P which divides the line segment joining the points B and F in 3:5. a) (2,-1) b) (-2,1) c) (1,2) d) (-1,-2) iii) From the graph, the equation for the parabolic Part of the path is: a) x2 - 6x - 9 = 0 b) x2 - 9 = 0 c) x2 - 6= 0 d) x2 - 6x + 9 = 0 iv) If the length of the track is 1 km. The boy is moving at a speed of 18 km/h. If he increases his speed by 6 km/h. Find the time saved by the boy in completing one round on the path a)50 sec b) 20 sec c)45 sec d) 15 sec ____________________________________________________________________________________________________________​

Answer 1

Answer:

answer is C part hope its help