kiarashae kiarashae

11-05-2018
Mathematics

contestada

What is the inverse of the given function?

y = 3x + 9

y = 1/3x + 3

y = 3x – 3

y = 3x + 3

y = 1/3x – 3

Respuesta :

sqdancefan sqdancefan

12-05-2018

Swap x and y, then solve for y.
x = 3y + 9
x - 9 = 3y . . . . . . subtract 9
(1/3)x - 3 = y . . . divide by 3

This matches the last selection
y = 1/3x - 3

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jbslayt jbslayt

27-07-2018

y=1/3x-3 is the answer. 100% sure!

Answer Link

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