Which geometric object is defined as the set of all points in a plane given distance from a given point

Ascatterplot is produced to compare the size of a school building to the number of students at that school who play an instrument. there are 12 data points, each representing a different school. the points are widely dispersed on the scatterplot without a pattern of grouping. which statement could be true

How do you write y-10=2 (x-8) in standard form

Find the maximum value of p= 4x + 5y subject to the following constraints :