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If f(x)=2x+4 and g(x)=3x-7; then find f^-1(x)

User ManniL
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1 Answer

7 votes

Answer:2x + 4

Explanation:

if you divide two linear binomials, you will get a quotient that is a monomial with a remainder. Use long division.

2/3

___________

(3x - 7) | 2x + 4

2x - (14/3)

___________

(14/3) + 4

Quotient is 2/3

Remainder = (14/3) + (12/3) = 26/3

To check, we multiply the quotient by the divisor, then add the remainder to the result.

(2/3)(3x - 7) + (26/3) =

2x - (14/3) + (26/3) =

2x + (12/3) =

User Jimpic
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