Question

Help!!!
Prove or disprove that the point (1,7.5) lies on the interior of the circle centered at the point (1,6) that passes through the point (2,5) .

Answer 1

Find the distance from (1,6) to (1,7.5).

Use the online calculator here if you like or use the formula which is attached.

http://www.mathportal.org/calculators/analytic-geometry/distance-and-midpoint-calculator.php

Answer 2

You can just count units because the two points (1,6) to (1,7.5) are on the same vertical line.

Answer 3

Distance from (1,6) to (2,5) is ?

This is the radius of the circle.