Explain how to find the slope of the line. And explain answer

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

If y varies directly as x2 and y=6 when x=6, find the constant of variation.