piercehenson piercehenson
  • 14-09-2022
  • Mathematics
contestada

What is the axis of symmetry of h(x) = 5x2 + 40x + 64?

x = −16
x = −4
x = 4
x = 16

Respuesta :

jimrgrant1 jimrgrant1
  • 14-09-2022

Answer:

x = - 4

Step-by-step explanation:

given a quadratic function in standard form

y = ax² + bx + c ( a ≠ 0 ) then the axis of symmetry is

x = - [tex]\frac{b}{2a}[/tex]

h(x) = 5x² + 40x + 64 ← is in standard form

with a = 5 , b = 40 , then axis of symmetry is

x = - [tex]\frac{40}{10}[/tex] = - 4

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