Determine the equation of the inverse of y=-4/x+1 The inverse is y=-a/x-b where a = a0 and b = a1
2 answers:
<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>
Answer:
a = 4
b = 1
Step-by-step explanation:
You see, the inverse here is:
y = 
And given that y = - a/(x - b), you just fill out the numbers that substitute the letters.
= 
Remove the common term (x):

Simplify:
= 
From here you can now know that:
a = 4 and b = 1
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