Respuesta :

mhanifa

Answer:

  • -8/25  or -0.32

Step-by-step explanation:

  • Vertex is (25, 32)

The function in vertex form:

  • y = a(x - 25)² + 32

x- intercepts are 15 and 35:

  • 0 = a(15 - 25)² + 32  or 0 = a(35 - 25)² + 32
  • 0 = a*100 + 32
  • 100a = -  32
  • a = -32/100
  • a = -8/25  or -0.32