Question

1. what mathematical operation do you often perform to analyze trends in a line graph?

a. division
b. subtraction
c. addition
d. multiplication

Explanation:

To analyze trends in a line graph, we often look at the change in values over time. The mathematical operation used to find the change (difference) between two values is subtraction. For example, if we have two data - points \(y_1\) and \(y_2\) on the \(y\) - axis (representing the variable of interest) at different times \(x_1\) and \(x_2\) on the \(x\) - axis, the change in the variable is \(y_2 - y_1\).

Answer:

b. Subtraction