Question

4.)y=-5x+3. 5.)y=²3x+1 pakisagot ng maayos...​

Answer 1

Answer:

Given y=f(x)=

5x−3

3x+1

Equation (1)

Replace x by y, we get,

f(y)=

5y−3

3y+1

From Equation (1), we get,

f(y)=

5(

5x−3

3x+1

)−3

3(

5x−3

3x+1

)+1

∴f(y)=

5x−3

5(3x+1)

−3

5x−3

3(3x+1)

+1

∴f(y)=

5x−3

(15x+5)−3(5x−3)

5x−3

9x+3+5x−3

∴f(y)=

5x−3

15x+5−15x+9

5x−3

14x

∴f(y)=

5x−3

14

5x−3

14x

∴f(y)=

14

14x

∴f(y)=x