Are you sure you wrote it right? :-(
The function f(x)=2x-5 is a linear function.
Unless otherwise stated (and that does not seem to be the case) in the real numbers domain, x may assume any value.
The same can be said to y.
So, the lowest output value approached by this function is -∞
(minus infinity).
:-)
<span>The greenhouse effect increases temperatures on Earth. ... of the planet's heat that would otherwiseescape from the atmosphere out to space. ... The difference between the Earth's actual average temperature 14° C (57.2° F) and ... of the sun's energy with greenhouse gases such as carbon dioxide, methane, ... Water vapor.</span><span>
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The original source of all sand is rocks.