Answer:
f^-1(x) = (x + 3)^1/3 + 2
Step-by-step explanation:
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What is 8÷1/5,multiply 8 by?
1 answer:
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y = - 3
Since y varies directly as x then
y = kx ← ( k is the constant of variation )
to find k use y = - 1 when x = 3
k = =
= -
hence y = - x
when x = 9, then
y = - × 9 = - 3