Which of these pairs of variables would you expect to be represented by a scatterplot with a positive correlation? a. a person's height and the person's grade on the math test b. the depth of the water in a pond and the amount of rainfall c. the number of miles driven and the number of people on the bus d. the number of concert tickets purchased and the number of concert tickets still available for purchase

B would be your answer

The answer would be B because the depth of the water would change depending upon the amount of rainfall, and this would create different depths which would be displayed throughout the scatter plot.

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: