Question 224926
Is y+3=0 a linear equation?  Yes.


You can rewrite the above equation as y=-3.


In Slope-Intercept form given as y=mx+b where m is the slope and b is the y-intercept when x=0 at point (0,b).  


For this example, the slope m=0 or a horizontal line and the y-intercept is -3.


The graph is shown below:


{{{graph(400,400, -5, 5, -5, 5, -3)}}}


I hope the above steps were helpful. 


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And good luck in your studies!


Respectfully,
Dr J


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