Which table represents a linear function

Lines p and q intersect. find the value of b. show your work. cite any theorems you use.

Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?

Joe has 45 minutes before he has to go to soccer practice he spends 20 minuets eating a snack and the rest of the time doing his homework write an equation to express how long joe spent doing his homework