The graphs of the two equations below are shown. The lines representing these equations may be the same, may intersect once, or may be parallel. Decide whether the system of equations in the problem has one solution, no solution, or an infinite number of solutions. 
and 
Definitions:
Stable
Referring to a chemical compound that does not easily decompose or change into other compounds under normal conditions.
HF
Commonly refers to hydrofluoric acid, a solution of hydrogen fluoride in water that is a highly corrosive acid.
HI
Hydrogen Iodide; a diatomic molecule consisting of one hydrogen atom and one iodine atom, known for its use as a reagent in organic chemistry reactions.
Acidic
Having the properties of an acid, which include a sour taste, the ability to turn litmus paper red, and the capability to donate a hydrogen ion (H+) in reactions.
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