ISI math doubt

[Halflife]

CONTENTS DELETED

The author has deleted this message.

[Seecha]

See .... put slope ka formula for (0,1) and ( 5, f (5)) ... now as it is grtr thn 1 .... so solve it and you will get tge answer

[Halflife]

CONTENTS DELETED

The author has deleted this message.

[Nikkita]

yes, ans is D
you can also do as f'(x)>= 1
 so, f(5)-f(0)/5-0 >= 1
f(5)- 1/5>= 1
f(5)>= 6

[Halflife]

CONTENTS DELETED

The author has deleted this message.