A vertical line does not have a slope - negative or positive. It is not defined.
A vertical line has no y intercept and, if its equation is x = c (for some number c), then the x-intercept is (c, 0).
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The slope intercept form is y=mx+b where m is the slope and b is the y intercept y=2x-8.
The value of m is the slope and the value of b is the y intercept.
tough to answer, but if slope is only provided then it should intercept at (0,0). Such as, y=3x, that intercepts at 0.
An equation of a line can be put into the form: y = mx + b, where m is the slope and b is the y-intercept. So if the slope is -2 the equation should be able to be rearranged into y = -2 + b, and the point (0,b) will be where the line intersects the y-axis.
y=-5x+7 y=mx+b m= slope b= y-intercept