Factor a^2+6a+6b–b^2 plz

To prove "p is equal to q" using an indirect proof, what would your starting assumption be?

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)