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f(x)= (2x+7) / (3x+2) and what would be the answer in term of x?

2007-04-29 17:37:16 · 3 answers · asked by Kelly 1 in Science & Mathematics Mathematics

3 answers

f(x)= (2x+7) / (3x+2)
Solving:
2x + 7 = 0
2x = -7
x = -7/2
and
3x + 2 = 0
3x = -2
x = -2/3
Solution: {x belongs to R| x is different of -2/3 and -7/2}
Because the nominator and denominator can't be equal to zero.
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2007-04-29 17:46:55 · answer #1 · answered by aeiou 7 · 0 1

are you sure you typed this correctly?
if what you typed is right, then to solve for f in terms of y is the same thing as saying f(y). All you have to do is substitute in y for all the x values. It is already solved in terms of x.

2007-04-29 17:42:02 · answer #2 · answered by pachoangman 2 · 0 2

y= (2x+7) / (3x+2)

3xy+2y=2x+7
3xy-2x=-2y+7
x(3y-2)=-2y+7


x=(-2y+7)/(3y-2)

f^-1(x)=(-2x+7)/(3x-2)

2007-04-29 17:47:01 · answer #3 · answered by iyiogrenci 6 · 1 1

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