I NEED HELP PLEASE! :)

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)

What is the difference between the predicted value and the actual value

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days