Answer:
0.5
Step-by-step explanation:
We assume your function is

The distance formula can be used to find the distance from the point on the curve (x, f(x)) to the origin:
d^2 = (x)^2 + (f(x))^2 = x^2 + (4 -x)
Written in vertex form, this is ...
d^2 = (x -1/2) + 3.75
This has a minimum at x=1/2, so that is the x-coordinate of the point closest to the origin.
What is the modulus of 2 – 3i?
The answer to this follow question is -70x - 100
here is the extra work
calculate the product to get your answer
I cannot say I'm sure as I haven't learned this myself in class, however, I think it would also be 60. Apologies if I'm incorrect!!