7 Another student writes -312 - 2x) = 3
after the given equation. What property
justifies this equation?
distributive property division property of equality
© subtraction property of equality
O substitution property of equality
plicating any part of this book is prohibited by law. © Triumphle

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)