Can anyone find the linear regression function for the data and identify and interpret the slope and y-intercept of the linear regression.

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Does anyone know how to do geometryme with this problem

Prove that quadrilateral is a rhombus.