8. (2) What is m X to the nearest tenth? Х 7.9 5.6 Y 5.6 Z​

I'm confused on this could anyone me and show me what i need to do to solve it.

Ascatter plot with a trend line is shown below. which equation best represents the given data? y = x + 2 y = x + 5 y = 2x + 5

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0