HELP ASAP!! The parent function f(x)= square root of x is reflected across the y-axis, vertically stretched by a factor of 7, and translated 3 units down.

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)

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is