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34kurt
3 years ago
12

2) What is the inverse of the function y = 4x +5?

Mathematics
1 answer:
Ronch [10]3 years ago
3 0

Answer:

f^{-1}(x)=\frac{1}{4} x-\frac{5}{4}

Step-by-step explanation:

make x the subject:

     y=4x+5

⇒ 4x=y-5

⇒   x=\frac{1}{4} y-\frac{5}{4}

change y to x:

f^{-1}(x)=\frac{1}{4} x-\frac{5}{4}

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