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Mathematics
5 May, 10:33
F (x) = √ (10-3x) find the formula
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Tiffany Perkins
5 May, 10:46
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Let y=f (x)
y=sqrt (10-3x)
you want to make x the subject
square both sides
y²=10-3x
3x=10-y²
x = (10-y²) / 3
now replace y with x
f^-1 (x) = (10-x²) / 3
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