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Kryger [21]
2 years ago
12

Please i really need help, i really need this i will give a brainliest to the people that answer correctly

Mathematics
2 answers:
Sonja [21]2 years ago
8 0

Answer:

Step-by-step explanation:

so to go forward we input x and get out y,   to go backwards ( the inverse) we plug in y and get out x   ,  so just solve the equation for x

f(x) = 8x - 5

remember that f(x) = y

so,

y = 8x - 5

now solve for x

y+5 = 8x

(y+5) / 8 = x

then remember that we want to swap x and y ,

(x+5) / 8 = y

now y = f^{-1}(x),  it's kinda confusing.

 f^{-1}(x)= \frac{x+5}{8}

diamong [38]2 years ago
5 0
Answer: B

Hope this helps!

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