Posted by nessa on Sunday, December 4, 2011 at 6:25pm.
I want to make sure this is right.
the inverse of f(x)=(-3x+2)/(2x-1)
I got f^-1(x)=(x-2)/(2x-3).
if its right how do i check the answer to see if it is right. also would the domain of f be D=all real numbers except 1/2. And I do not know how to get the range for f^-1
Pre-calculus - Henry, Monday, December 5, 2011 at 8:12pm
y = (-3x+2) / (2x-1),
x = (-3y+2) / 2y-1),
-3y + 2 = 2xy-x,
-3y - 2xy = -x-2,
y(-3-2x) = -x -2,
y = (-x-2) / (-2x-3).
-2x-3 = 0,
-2x = 3,
X = -3/2.
Domain = All real values of X except
Range = All values of y resulting from inputs (x) within the domain.
-Infinity < X < +Infinity.
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