2006-12-17 14:51:16 · 10 answers · asked by Monica M 1 in Science & Mathematics ➔ Mathematics
To get an inverse function, first switch the variables x and y. Then solve for y is you want the inverse function to still be expressed as a function of x.
For y = 2x+3
the inverse function is:
x = 2y + 3
If this suits your purpose, leave it like that. Otherwise solve for y.
2y = x - 3
y = (x - 3)/2
2006-12-17 16:27:54 · answer #1 · answered by Northstar 7 · 0⤊ 0⤋
Ok to find an inverse function, you switch the y and x and try to solve or simplify to get it back to a y=___ setup. Switch: X=sqrt(2y+3) Solve: -get rid of sqrt by squaring both sides X^2 = 2y+3 -minus three X^2 -3 = 2y -divide by 2 (X^2 -3)/2 = y ^thats your inverse function!
2016-05-23 03:28:19 · answer #2 · answered by Anonymous · 0⤊ 0⤋
y=2x+3 subtract 3 from each side
y-3=2x divide by 2
x=y/2-3/2
2006-12-17 14:54:31 · answer #3 · answered by yupchagee 7 · 2⤊ 0⤋
y^-1 = (1/2)x^-1 + (1/3)
2006-12-17 14:55:02 · answer #4 · answered by highyellow 2 · 0⤊ 0⤋
y=-1/2x-3/2
2006-12-17 15:31:32 · answer #5 · answered by Anonymous · 1⤊ 0⤋
it is:
1/y = 1/(2x+3)
2006-12-17 23:16:30 · answer #6 · answered by abcd_123 2 · 0⤊ 0⤋
-y=2x+3
2006-12-17 14:54:09 · answer #7 · answered by stwad 1 · 0⤊ 1⤋
negative reciprocal of your slope: 2x
there -1/2x
so y=-1/2x +3
2006-12-17 14:53:51 · answer #8 · answered by avalentin911 2 · 0⤊ 1⤋
x=2y+3
2y=x-3
y=(x-3)/2
2006-12-17 14:53:43 · answer #9 · answered by raj 7 · 3⤊ 0⤋
yo yo yo yo yo yo yo yo yo. Da INVERZE FUNCTION BE
x=2y+3
PLAYAAAA. CHEYEAH, CHEYEAH! REP DAT ALGEBRA STRAIGHT, SOOOON. PEAZE. WORD 2 YA MOTHA.
2006-12-17 14:56:29 · answer #10 · answered by wildchild47236 3 · 1⤊ 1⤋