What are the slope and the y-intercept of the linear function that is represented by the graph?

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

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)