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Vesnalui [34]
3 years ago
5

Why the x-coordinate of the point of intersection is a solution to the equation f(x) = g(x)?

Mathematics
1 answer:
viva [34]3 years ago
8 0

If 2 graphs meet at the same point means that for the same x both function give the same outcome/value y. That's why they are equal. Suppose f(x) = x^2 -1 and g(x) = 2x-1. This function meet at the point x=2(the point of intersection). Let's put the value of intersection in the functions. f=2^2-1=3, g= 2*2-1=3, we proved in another way why that's the point where 2 graphs are equal each other.

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