machan meka poddak check karala balapan
f(x)=2x-3
deravative is [ f'(x) ] = 2
there is no critical value.
you get critical values if there is indipendent variable in the deravetive of f(x).
this eqation like y=mx+c
y= f(x)
m= 2
c= -3
when x=0 then
f(x)=-3
when f(x)=0 then
x=3/2=1.5
here is the graph
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