2 Identify and clearly label the slope and y-intercept for each equation in slope-intercept form. Choose the correct answer from the choices below: 2
y=-
Slope is 2/3 and the y-intercept is (0,0)
Slope is -2/3 and the y-intercept is (0, -2/3)
Slope is -2 and the y-intercept is (0,3)
Slope is -2/3 and the y-intercept is (0,0)

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)