Answer:
Step-by-step explanation:
1.
Only the graph on the left is a function, due to the one on the right failing the vertical line test.
2.
This is asking for a positive x-value of the two functions, we can find that by setting them equal to a common value and then equal to each other.
Lets set them both equal to x.
First equation:
[tex]y=x^2\\\sqrt{y}=x[/tex]
Second equation:
[tex]y^2=x[/tex]
Now we set them equal to each other:
[tex]y^2=\sqrt{y}[/tex]
Then solve for y by squaring both sides:
[tex]y^4=y[/tex]
Now we solve by factoring:
[tex]y^4=y\\y^4-y=0\\y(y^3-1)=0\\y^3-1=0\\y^3=1\\y=\sqrt[3]{1}\\ y=1[/tex]
