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Are both kidneys equal in size?
Normal kidneys are usually of approximately equal size, but it is common that one of them is smaller and has inferior function compared to the other. Many people have only one functioning kidney without even knowing about it.
When the input of a function is -4 what is the output of the function.?
Depending on the function, it can have any value whatsoever.
How can you tell if a graph is a continuous function or a discrete function?
The graph of a continuous function will not have any 'breaks' or 'gaps' in it. You can draw it without lifting your pencil or pen. The graph of a discrete function will just be a set of lines.
How can you graph a linear function without a calculator?
y=x+1
Condition for the continuity and differentiablity of a function?
An intuitive answer (NOTE: this is far from precise!) A function is continuous if you can trace its graph without lifting your pencil from the page. If, additionally, it is smooth everywhere without any jagged edges or abrupt corners, then it is differentiable. It is not possible for a function to be differentiable but not continuous. On the other hand, plenty of functions are continuous without being differentiable.
