24 - 13 = 11
Simple subtraction I'm guessing
The answer for this is 2a-b
The answer to this is 250.
Given that the graph of a parabola.
We need to determine the function that represents the graph.
<u>Function of the graph:</u>
From the graph, it is obvious, that the x - intercepts of the graph are 
Thus, the equation can be written as

Simplifying the terms, we have;

Multiplying, we get;

Adding the like terms, we have;

Writing it as function, we have;

Hence, the function of the graph is 
A correlation coefficient shows how linear a set of data is, so for any points that comply with the given equation, the correlation coefficient will be one, that is, the correlation is completely linear, because the given equation is alinear one, there is a linear correlation of x and y. Indeed, the equation is a line equation in general form.