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Write an equation of the line containing the given point and perpendicular to the given line. express your answer in the form yequalsmxplusb. ​(4​,9​); 7xplusyequals8

Respuesta :

7x+y=8
y=-7x+8

for perpendicular line
m=1/7
y=1/7x+b

(4,9)
9=4/7 +b
b=9-4/7=(63-4)/7=59/7

y=(1/7 )x +59/7

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