Weegy: Undefined slope is when the line is vertical, and the slope is infinite (technically). Any y value is irrelevant in this kind of line, so in slope intercept, the equation is x = -3. [ Putting it in standard form, you get x + 3 = 0 The answer is x + 3 = 0. I hope this is helpful. :) ] User: Write an equation of the line that passes through (10,-4) and is perpendicular to the line whose equation is y = 2/5x - 8.
y = 2/5x - 8
y = ... (More)