Answer :
Answer:
Option A.
Step-by-step explanation:
The general form of a quadratic function is
[tex]y=ax^2+bx+c[/tex]
It means, power of y should be 1 and highest power of x should be 2.
In option A,
[tex]y-3x^2=3(x^2+5)+1[/tex]
[tex]y-3x^2=3x^2+15+1[/tex]
[tex]y=3x^2+16+3x^2[/tex]
[tex]y=6x^2+16[/tex]
It is a quadratic function.
In option B,
[tex]y^2-7x=2(x^2+6)+7[/tex]
Here, power of y is 2. So, it is not be a quadratic function.
In option C,
[tex]y-2x^2=6(x^3+5)[/tex]
Here, highest power of x is 3. So, it is not be a quadratic function.
In option D,
[tex]y-5x=4(x+5)+9[/tex]
Here, highest power of x is 1. So, it is not be a quadratic function.
Therefore, the correct option is A.
Answer:
It is A
Step-by-step explanation: I took the test on edge 2020