What do you think is the right answer

Determine domain and range, largest open interval, and intervals which function is continuous.

Gray looks up the definition of point. a point is a location in a region. what is true about the statement describing the word point? 1. the statement uses the terms location and region that are defined based on an understanding of a point. 2.the statement precisely defines the concept of a point. 3. the statement does not include information needed to fully define a point. 4. the statement is an incorrect description of a point because it does not use mathematical words.

X-y=4 x+y=8 the x-coordnate of the solution to the system shows