The one-to-one functions g and h are defined as follows. g={(-9,-4),(-7,3),(0,-6),(8,0)
h(x)=4x+9

I need to know what g^-1(0) is. I need help!

Explanation:

Given

Required

Find

A relation is represented as:

And the following relationships exist between x and y

and

So: implies that:

Which means that: we look for the corresponding value of x where y = 0.

Hence:

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