Question

resolve this simple value of f(x)
f'(5).f(x)=-0.3x+900
when x = 1500

Answer 1

Wait, what do you mean? What is the dot?

Answer 2

I think it could be a
multiplication

Answer 3

could it be possible?

Answer 4

Whether it's possible, yes, it's just -0.3(-0.3(1500)+900), since
\[f'(x)=-0.3\]Unless that's not a derivative...?