is the function shown in the graph one-to-one?

The correct option is 3.

Step-by-step explanation:

In a one-to-one function every element of the function's codomain is the image of at most one element of its domain.

A function is one-to-one function if it passes vertical line test and horizontal line test. It means each vertical and horizontal line cuts the graph of function at most 1.

The given graph passes the vertical and horizontal line test. It means there exist one output for every input. So the function shown in the graph is one-to-one function.

Therefore, the correct option is 3.

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute: