What is the vertical stretch factor of y=2x^2-6x-8?

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

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

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day