Is (-1, -1) a solution of y = 3x + 2?

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.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

How can constraints be used to model a real-world situation?