Question 1002979
Is y=4 a linear equation?
It is linear.
The graph is a line --> linear.  The only variable (y) is 1st order (exponent = 1).
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I think yes because anything you put in for x would be a straight line, but how would you write it in standard form with no x variable?
You can write y = 0x + 4, but that's not necessary.