Why she is right Explanation ??? please help me

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

How can we find the measure of an exterior angle if we know the measurement of an interior angle

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?