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A function is a mapping between two sets, the domain and the range, such that each element in the domain is mapped to only one element in the range. This is true for all lines in a plane except those that are parallel to the y-axis. Thus, all non-perpendicular lines are functions but vertical lines are not functions.
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Earn +20 ptsQ: Why aren't all lines considered functions?
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Continue Learning about Math & Arithmetic
Do all lines represent functions?
No. Vertical lines are not.
Are all straight lines functions?
yes
What similarities do all graphs of linear functions share?
They are all represented by straight lines.
Which lines are the tube lines which have no branches at all?
The Northern and Piccadilly lines are tube lines which have no branches at all.
Is rhombus congruent?
the sides are all the same sizes. but the angles arent.
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