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anyanavicka [17]
3 years ago
14

Determine the equation of the inverse of y=-4/x+1 The inverse is y=-a/x-b where a = a0 and b = a1

Mathematics
2 answers:
leva [86]3 years ago
8 0
<span>y=-4/x+1 is ambiguous, since it's not immediately clear whether you meant 

                                                -4
y = -4/x   +    1      or      y = ---------
                                               x+1

I'm going to assume that the latter is what you meant.

1.  Interchange x and y, obtaining:

               -4
     x = --------
             y+1

2.  Solve this for y, obtaining  y+1 = -4/x, or   xy + x = -4, or
                                
                                -x - 4
    xy = -x-4, or y = ---------
                                    x

                                   -1              -1                 4
3.  Replace y with    f      (x):      f    (x) = -1 - -----
                                                                         x

This last result has the correct form.</span>
SVETLANKA909090 [29]3 years ago
3 0

Answer:

a = 4

b = 1

Step-by-step explanation:

You see, the inverse here is:

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

And given that y = - a/(x - b), you just fill out the numbers that substitute the letters.

-\frac{4}{x-1} = -\frac{a}{x-b}

Remove the common term (x):

\frac{-4}{-1} = \frac{-a}{-b}

Simplify:

\frac{4}{1} = \frac{a}{b}

From here you can now know that:

a = 4 and b = 1

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