# Need math help to solve and check slope(m)=undefined through (-8,11)

Anonymous
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### Question Description

Solve and check the equation(y=mx+b) for slope(m)=undefined through (-8,11)

How do you show work on this? I know it's x=-8, but I don't know why and is checking this equation even possible? By checking I mean like putting in the point to check. My teacher needs me to show work.

Naftaly K
School: Boston College

take arbitrarily point (x,y)

m = change y over change in x

m = y-11divide by x --8

m(x + 8)  = y- 11

xm + 8m  = y - 11

y = xm + 8m + 11

y = m( x + 8) + 11

b =11

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Anonymous
awesome work thanks

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