identify the sets of lines to which the given line is a transversal.
line a

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.

X+ y = 5 ; x - y =3 solve using linear combination

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)