Question

Based on the data in the scatter plot, what would you expect the y-value to be for x = ‘20?

a) between 80 and 65


b) greater than 80


c) less than 50


d) between 65 and 50

Answer 1

c): Less than 50

Explanation:

Answer 2

Option c): Less than 50

Explanation:

By extending the grids for the graph to the right and a bit down, by understanding that the three points shown seem to behave like a straight line, and keeping the line (represented in green in the attached image) as predictive for the future, we can say that when the look at the grid-point that represents x = '20, the value for the vertical coordinate must be between 40 and 50 - definitely below 50, as suggested by option c).

This point in question is pictured in red in the attached image.