Find the maximum number of points of intersection of 7 straight lines and 5 circles when 3 straight lines are parallel and 2 circle and concentric.

The maximum number of points of intersection of 8 straight lines is

Find the maximum number of points of intersection of 6 circles.

(xiii) The point of intersection of the straight line ax+by=c on the x-axis is

(xiv) The point of intersection of the straight line px+sqy=r on the y-axis is

The maximum number of points of intersection of five lines and four circles is (A) 60 (B) 72 (C) 62 (D) none of these

Find the point(s) of intersection of the line 2x + 3y = 18 and the circle x^2 + y^2 = 25

Find the image of the point (5,-7) with respect to the straight line 2x-3y=18 .

Column I, Column II Number of straight lines joining any two of 10 points of which four points are collinear, p. 30 Maximum number of points of intersection of 10 straight lines in the plane, q. 60 Maximum number of points of intersection of six circles in the plane, r. 40 Maximum number of points of intersection of six parabolas, s. 45

There are 15 points in a plane of which 4 points lie in one stright line and another 5 points lie in another straight line . The two lines are parallel and no three of the remaining 6 points are collinear . Find (a) the number of straight lines and (b) the number of trangles that can be formed by joining the 15 points .

If the straight line intersects the circle at two points, then the straight line is called a "_____" to the circle.