is the discriminant of f positive, zero, or negative

Discriminant of the given graph is positive.
" The x-intercept for any graph is defined as value of x-coordinates of the graph where given curve cuts the x-axis."
According to the question,
In the given graph,
Curve cuts the x-axis at two points (2,0) and (-2,0).
It means there are two real values of x-intercepts.
If there are two real solution for x , it means b² -4ac >0 .
Therefore , Discriminant >0
Hence, discriminant of the given graph is positive.
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