Question 623385
The graph of:

(-3,-6)

(7,-6)

Plotting the above graph we find a horizontal line at:


y = -6


The y-intercept is -6


The equation of a horizontal line is


y = b


where b is the y-intercept.


Since the slope of a horizontal line is 0 (zero), the general formula for the standard form equation,


y = mx + b


becomes


y = 0x + b


Therefore:


y = b


Since the line is horizontal, every point on that line has the exact same y value. This y-value is therefore also the


y-intercept.



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