Please help me with this

Aregression was run to determine if there is a relationship between hours of tv watched per day (x) and number of situps a person can do (y). the results of the regression were: y=ax+b a=-0.662 b=30.418 r2=0.703921 r=-0.839

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Use set buikder notation to represent the following set: {, -2, -1, 0}