Write a function for the line that includes points of (4,-5) and (8,-7) I WILL MARK BRAINLEAST FOR WHOEVER ANSWERS IT

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

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

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52