Answer:
[tex]y=4x^2[/tex]
[tex]y=x^2-7[/tex]
Step-by-step explanation:
Since, when we solve a one variable linear equation by graphing,
We introduce a new variable 'y',
And, equate both sides of the equation by this variable ,
Here, the given equation,
[tex]4x^2=x^2-7[/tex],
Thus, the system of equations would be,
[tex]y=4x^2[/tex]
[tex]y=x^2-7[/tex]
By graphing these equations, the x-coordinate of there intersection point would be the answer.
