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If the inverse of a function g exists and g^-1(0)=5, what is the value of an x-intercept of g?

User Mcmlxxxiii
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1 Answer

4 votes

So,

Here we have that:


g^(-1)(0)=5

This implies that:


g^(-1)(0)=5\to g(5)=0

Now, the x-intercept of a function is defined as all the values of x that makes y-axis or the function = 0.

So, given that g(5) = 0, notice that g(x)=0 when x=5. So, the value of an x-intercept of g is 5.

User CHEEKATLAPRADEEP
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