2 years ago

Linear equations in two variables

Mathematics

1 answer:

love history [14]2 years ago

5 0

Answer:

y=-4 is a function

Step-by-step explanation:

It passes the vertical line test, and each x has only one y, so it is a function.

x = -4 is NOT a function because one x has multiple y values. It does not pass the vertical line test.

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