ICSE Class 9 Maths Distance Formula

ch distance formula
can u send the stems to do the sum in the file
 Formula of distance

Question 1 to 28
 The coordinates of points on the xaxis which are at a distance of 5 units from the point (6, 3). Find the points.
 PQ is a straight line of 13 units. If P has the coordinates (5,3) and Q has the coordinates (7,y); find the values of'y'

question no 202
 (PLEASE EXPLAIN THE CALCULATIONS STEP BY STEP). Find the point on the yaxis whose distance from the points A(6,7) and B(4,3) are in the ratio 1:2.
 The centre of a circle is (2x1,3x+1). Find x if the circle passes through (3,1) and the length of its diameter is 20 unit. (PLEASE EXPLAIN THE CALCULATIONS STEP BY STEP . I HAVE A DOUBT IN SOLVING THE QUADRATIC EQUATION )