Find the common difference for -31,-26,-21,-16

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

In two or more complete sentences, formulate how to use technology to calculate the appropriate regression model for the given data. you are not required to find the model, just choose the appropriate regression and explain how to use the technology. (-5,,2.,0.8), (0,-0.5), (2,-1.3), (3,-0.8), (5,2)

Standard deviation of 19,29,21,22,23