It will have two intercepts when b and c are different numbers.
It will have one intercept when b = c
It will have one intercept when b = c
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Here there are two intercept in the x-axis it is (b,0) and (c,0)
and there is one intercept in the y-axis it is (0,abc) OK!
and there is one intercept in the y-axis it is (0,abc) OK!