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These are the concepts: an understanding of variables, knowing how to graph a point on an x and y graph, knowing how to solve an equation for y, being able to determine the y-intercept (and understanding what it is), and being able to determine the slope.

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An introduction to Filippo Brunelleschi's experiment regarding linear perspective, c. 1420, in front of the Baptistry in Florence

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Hi, From the way f(x) is defined, we can conclude that if we have some number like a, and another number like b, such that b is greater than a, then f(b) contains f(a) in it, plus other prime numbers that come between a and b.

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