Is Y=3x squared -9x +20..a relation , a function, or both or neither
1 answer:
Answer:
It is a relation and a function.
Step-by-step explanation:
The expression: is a relation because it connects x values of the Real number set with y values of the Real number set via this associated equation.
It is also a function,because this relation satisfies that for each x-value in the starting set called Domain (which in this case is as we said the Real number set), there is ONLY one value in the END set (called the Range) associated it.
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Answer:
2)A plane has length and width.
3)A plane extends infinitely in all directions
5)A plane is a flat surface.
Step-by-step explanation:
We can think of a plane as a line in space with no height, only length and width.
Yes, a plane is a two-dimensional surface, hence it has length and width.
2)A plane has length and width (TRUE)
The plane surface extends infinitely far, therefore it extends infinitely in all direction.
3)A plane extends infinitely in all directions (TRUE)
5)A plane is a flat surface(TRUE)
The correct options are 2,3 and 5.
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