What is the domain of y = -2x^(2)+ 8x

Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2