Answer:
f⁻¹(x) = 2x - 8
f⁻¹(4) = 2 × 4 - 8
f⁻¹(4) = 0
Step-by-step explanation:
Let's test it
So we do indeed have the inverse function, so using that we can plug in the values requested:
f⁻¹(x) = 2x - 8
f⁻¹(4) = 2 × 4 - 8
f⁻¹(4) = 0
Multiply and combine like terms: -5x – 4(9 – 2x)
1 answer:
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Answer:
C
Step-by-step explanation:
Substitute the given values for x and y into the expression
5 × () - 1
= 5 × () - 1
= (5 × 2) - 1
= 10 - 1
= 9 → C