since you know of one points and the halfway point between the other point. just multiply the halfway point by 2 and this is the total distance between the two points.
The x co-ordinate of a quadratic lies exactly halfway between the two x-intercepts, assuming they exist. Alternatively, the x co-ordinate can be found using the formula -B/(2A), when the function is in the form, y = Axx + Bx + C.
Line of reflection.
The idea is to calculate the average of the x-coordinates (this will be the x-coordinate of the answer), and the average of the y-coordinates (this will be the y-coordinate of the answer).
42 is exactly halfway between 32 and 52.42
50 is exactly halfway between 40 and 60.
Exactly halfway between them is 15.45.
It is exactly halfway between them.
Exactly halfway between them is 12.45.
Willows is about halfway between Anderson and Sacramento. Sacramento National Wildlife Refuge is exactly halfway.
The town of Tarcutta is almost exactly halfway between Melbourne and Sydney.
Halfway between 8 and 9
3/8 is exactly halfway between one half and one fourth