Thank you for the help this is the equation: (by the way. at the start where it says 2x2 the second 2 is a squared)
y = 2x 2 + 3x
2007-09-12 04:55:36 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
solve for x using quadratic formula.
2x^2 + 3x - y
x= (-b +/- ((b^2 - 4ac))^1/2)/2a
then switch the x and the y and there you have it...
2007-09-12 05:48:15 · answer #1 · answered by Paul H 2 · 0⤊ 0⤋
In order for a function to have an inverse, it must be one-to-one. This function is not one-to-one, because 2*0^2 + 3*0 = 0 = 2^(-3/2)^2 + 3*(-3/2). In other words, both the points (0,0) and (0,-3/2) are on on this function. Therefore the function has no inverse.
Of course, the function can be made to be one-to-one on its domain by a suitable restriction of the domain, but without being given the domain, the problem has no solution.
2007-09-12 05:21:27 · answer #2 · answered by Tony 7 · 0⤊ 0⤋
Check the link below. It has a good explantion (wtih examples) and even an inversing calculator and some videos.
2007-09-12 05:22:23 · answer #3 · answered by RadioActive 3 · 1⤊ 0⤋