Find the horizontal distance between the two points. (10,10) and left bracket, minus, 5, comma, 10, right bracket, .(−5,10).

The horizontal distance between the two points is equal to the absolute value of the difference between their x-coordinates.

Using the formula:
Horizontal distance = |x2 - x1|

Where:
Point 1 = (10,10)
Point 2 = (-5,10)

Substitute the values:
Horizontal distance = |-5 - 10|
Horizontal distance = |-15|
Horizontal distance = 15

Therefore, the horizontal distance between the two points is 15 units.