Heather is attempting to find the x-coordinate of the vertex of the Quadratic Function, $$ f(x)=-2 x^{2}+8 x-3 $$ Which value or values of the function will Heather use the calculate? . 8 and -2 -2 only 8 only $$ -2,8 $$ and -3

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1. The quadratic function is given by  
   $$
   f(x) = -2x^2 + 8x - 3.
   $$

2. The standard form of a quadratic function is  
   $$
   f(x) = ax^2 + bx + c,
   $$
   where $$a$$, $$b$$, and $$c$$ are constants.

3. For the given function, we identify the coefficients:
   - $$a = -2$$
   - $$b = 8$$
   - $$c = -3$$

4. To find the x-coordinate of the vertex of the quadratic function, the formula is  
   $$
   x = -\frac{b}{2a}.
   $$
   Heather will use the values of $$a$$ and $$b$$ in this formula.

5. Thus, Heather uses the coefficients $$-2$$ (from $$a$$) and $$8$$ (from $$b$$) to calculate the vertex's x-coordinate.

The correct answer is: $$8$$ and $$-2$$.
Heather will use the values $$8$$ and $$-2$$ to calculate the x-coordinate of the vertex.

Heather is attempting to find the x-coordinate of the vertex of the Quadratic Function, \( f(x)=-2 x^{2}+8 x-3 \) Which value or values of the function will Heather use the calculate? . 8 and -2 -2 only 8 only \( -2,8 \) and -3

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