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Write the equation of a line that is perpendicular to x=8 and goes through (4,-2)

 Nov 27, 2018
 #1
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Another tricky one, RP

 

A perpendicular line  to   x  =   a     will be     y =  b

 

So..... a line perpendicular to x = 8   will   be   y = the y coordinate of the given point

 

So....we have

 

y = -2

 

See the graph here to get a feel for this :  https://www.desmos.com/calculator/2av3sxef7g

 

 

cool cool cool

 Nov 27, 2018

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