Question

Find the axis of symmetry using the formula. X = -b/2a

Answer 1

Answer:

x = 2

Step-by-step explanation:

f(x) = -2x² + 8x - 9

Comparing this function with f(x) = ax² + bx + c

a = -2, b = 8, c = -9

The axis of symmetry is given by the formula:

x = -b/2a

Substitute a = -2 and b = 8 into the formula:

`\begin{gathered} x=(-8)/(2(-2)) \\ \\ x=(-8)/(-4) \\ \\ x=2 \end{gathered}`

x = 2