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I need help please thanks

I need help please thanks-example-1
User Sfera
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f(0) is equal to 4 in this graph.

You probably have seen the equation
y=mx+b at some point. f(x) is another way to express y. Essentially, f(x) represents the output you will get from an equation when a number equals x.

In this case, the input is 0, hence why it is notated as f(0). When x is at 0, y is at a value of 4. To further illustrate, f(3) is equal to 3, as with an input (x) of 3, the y value sits at 3, which means the output is 3.

User Alan Nexus
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