Answer:
B. The equation represents a function, but not a linear function.
Step-by-step explanation:
Equation with x squared:
A equation in which the highest power of x is 2, that is, a term [tex]ax^2[/tex], is called a quadratic function.
In this question:
[tex]y = 4x^2[/tex] is a function.
However, since the highest power of x is 2, it is not a linear function, it is a quadratic function, and the correct answer is given by option B.