Answer: y = x
Explanation:
Looking at the graph, we can retrieve two coordinates from the range we are given: (0, 0) and (5, 5). Because 1900 is the starting x-coordinate of the graph, we can represent it at 0.
You can find the slope of this equation using this formula:

Your slope is equal to 5/5, or 1.
Because the function's y-intercept is equal to 0, there is no need to add anything to the function.
Before this theory can be replaced, the one that must happen is : D. Scientists must test and agree on a new theory
After numerous tests are done and it's proven to be a better theory and can be more generally accepted than the previous one, that the previous theory could be replaced
hope this helps
An example of a stable system is a chemical reaction that is in equilibrium. A reaction at equilibrium has both forward and backward reactions in which the rate of forward reaction is equal to the rate of the backward reaction. The principle that governs equilibrium reaction is Le Chateliers principle.
Electrons. Hope this helps