# SOLUTION: What are the slope and y-intercepts of x=-9?

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 Click here to see ALL problems on Graphs Question 87127: What are the slope and y-intercepts of x=-9?Answer by Nate(3500)   (Show Source): You can put this solution on YOUR website!x = -9 ... Simplify the meaning by picking multiple coordinates. ( x , -2 ), ( x , -1 ), ( x , 0 ), ( x , 1 ), ( x , 2 ) There is to plug in these values: x = 0y - 9 ( -9 , -2 ), ( -9 , -1 ), ( -9 , 0 ), ( -9 , 1 ), ( -9 , 2 ) This is a vertical line, so the line doesn't intersect with the y-axis ... no y-intercepts. slope = (y2 - y1) / (x2 - x1) = (2 - 1) / (-9 + 9) = 1 / 0 The slope is undefined.