The graph below represents a function.
What is the value of f(4)

I'm not sure if this is what your looking for but, the ordered pair would be 2,4

Explanation:

the line intercepts the y axis at point 2 and same on the x axis the line intercepts at 4

hi,

the capital city of australia is canberra.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.