Respuesta :

LeviElijah

ANSWER:

  • -5

Solution:

1.Substitute

  • Substitute x = 4 into [tex] \sf{ - \frac{1}{2} {x}^{2} + \frac{3}{4} \times }[/tex]
  • [tex] \sf{ - \frac{ {4}^{2} }{2} + 4 \times \frac{3}{4} }[/tex]

2.Calculate

  • [tex] \sf{ - \frac{16}{2} + 4 \times \frac{3}{4} }[/tex]
  • Cross out the common factor
  • [tex] \sf{ - 8 + 4 \times \frac{3}{4} }[/tex]
  • Cross out common factor
  • [tex] \sf{ - 8 + 3}[/tex]
  • Calculate the sum or difference
  • -5

Hope it helps