Calculus
posted by Labiba .
For the following function, state the derivative and evaluate f'(4):
f(x) = x
Please show your work! Thank you!!

can someone please please help me with this cause i have more questions like it, but i can't figure out how to do it.

f'(x) = 1
so f'(4) = 1
I hope the others are a bit more challenging 
The slope of the graph of y = x is one for any x at all, including for x = 4