MHB Overcoming Struggles to Addressing Inequalities Step by Step

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I’m overall struggling. Not liking the inequalities. Any step by step would be awesome
 

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$f(x) > 0$ is any part of the graph that is above the x-axis

$f(x) = 0$ is any part of the graph that crosses or touches the x-axis

$f(x) < 0$ is any part of the graph below the x-axis
 
Beer soaked query follows.
Seka88 said:
I’m overall struggling. Not liking the inequalities. Any step by step would be awesome
D97F9FC9-ABA4-4A78-956C-B889286E4D18.jpeg

Is there a specific inequality behind item #5?
 
Do you not understand that in "y= f(x)" any value of f is a "y" value? f(x)= 0 means y= 0 so that is a point on the x- axis. That is what goes into the first two blanks. For the other two we need to know how "f(x)" is defined here.
 
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