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sergiy2304 [10]
3 years ago
12

Which function is the inverse of y=2x+5/2

Mathematics
2 answers:
Svetllana [295]3 years ago
8 0
First you have to change y to x

X= 2y+5/2

Then find y

(X-5/2)/2=y

So (X-5/2)/2 is the. Inverse function
Schach [20]3 years ago
3 0

Answer:

f^{-1}(x)=\frac{1}{2}x -\frac{5}{4}

Step-by-step explanation:

y=2x+\frac{5}{2}

To find inverse, we replace x with y and y with x

x=2y+\frac{5}{2}

Now, we solve the equation for y

x=2y+\frac{5}{2}

Multiply the whole equaiton by 2 to remove the denominator 2

2x= 4y +5

Now Subtract 5 from both sides

2x-5 = 4y

To isolate y, we divide by 4 on both sides

\frac{2}{4}x -\frac{5}{4} =y

Simplify the fraction

y=\frac{1}{2}x -\frac{5}{4}

Replace y with f^-1

f^{-1}(x)=\frac{1}{2}x -\frac{5}{4}

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