Given f(x)=5(3−x)+5, what is the value of f(−6)

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?