Jakesnake03 Jakesnake03

13-11-2021
Mathematics

contestada

Which equation is the inverse of y = x2 +4?
y =-VI- 4
b. y = x-4
a
Cy=Vx+4
d. y= -x - 4
Anyone know the answer

Which equation is the inverse of y x2 4 y VI 4 b y x4 a CyVx4 d y x 4 Anyone know the answer class=

Respuesta :

SDCInfinity SDCInfinity

13-11-2021

Answer:

B. [tex]y=\pm\sqrt{x-4}[/tex]

Step-by-step explanation:

Swap the positions of the x and y variables then solve for y again.

[tex]y=x^2+4\\\\x=y^2+4\\\\x-4=y^2+4-4\\\\x-4=y^2\\\\\sqrt{x-4}=\sqrt{y^2}\\\\\pm\sqrt{x-4}=y[/tex]

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