If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation? 2x+8y=12 3x-8y=11 a. y, in the second equation b. x, in the second equation c. x, in the first equation d. y, in the first equation

What is the vertex form of f(x) = x2 + 6x + 3

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)