The derivative of
at a point
in the direction of a vector
is

We have

and

Then the derivative at
in the direction of
is

Answer:
6/5 or 1.2
Step-by-step explanation:
you can solve with an equation:
x : 5 = 12 : 50
x = 5 * 12 : 50
x = 6/5 (or 1.2)
or you can solve with an expression
12/50 * 5 = 6/5 (or 1.2)
Answer:
f=2
Step-by-step explanation:
f(x-2)=2x-4
divide x-2 to 2x-4
f=2
f(2-2)=4-4
Answer:
⅖
Step-by-step explanation:
5x = 2
x = ⅖
⅖ can't be simplified further