What is the slope of a line segment with endpoints at (-1, 1) and (1, 5)?

Plzzz answer both questions and i will give you 100 points

Line ab contains points a(4, 5) and b(9.7). what is the slope of ab?

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.