calc

[reef slate]

can anyone please help me..

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[trail portal]

The graph of f is "broken" at x = 1
So f is not differentiable at x = 1, don't worry about B and C

The graph looks smooth around x=0, I suppose f''(x) is also continuous at 0, so there is only one suitable value bridging the negative values of f''(x) when -1 < x < 0 and the positive values of f''(x) when 0 < x < 1

Similarly, the graph is sloping upwards to the right of x=2; this should tell us the sign of f'(x) there

[trail portal]

Continuity of f'' may not be necessary, since the intermediate value property is guaranteed by Darboux

[reef slate]

so what should i do to find a,b,c,d..?

A = 0 , D = -

b,c = -1..?

[reef slate]

am i wrong..?

[trail portal]

A is good

D should be + since the graph keeps sloping upward