The line of symmetry of the parabola whose equation is y = ax^2 -4x + 3 is
x = -2. What is the value of "a"?

A. -2
B. -1
C. -1/2

B. -1

Step-by-step explanation:

If we have a parabola whose equation is:

The line of symmetry is calculated as:

Now, we have the equation and the line of symmetry is

Where:

So, we can replace by -4 and by -2 and solve for using the following equation as:

It means that the equation of the parabola is equal to:

g(x) is the negative form of f(x)? because whenever its the negative form it reflects its self over the x axis. idk if this is right though.

step-by-step explanation:

answer: the answer is ann