The general expression for any straight line is:
[tex]y=mx+b[/tex]Where:
• m is the slope of the line
,• b is the y-axis intercept
In this case, we have a straight line with equation
[tex]y=-4\text{ }\rightarrow y=0x-4[/tex]Meaning that the slope of such line is 0, and the y-axis intercept is -4.
in fact, it is a horizontal line that passes through y=-4
Any horizontal line has a slope of 0
Answer: The slope of y= -4 is 0
