jadel3938 jadel3938
  • 20-12-2021
  • Mathematics
contestada

if f(x) = 2x^ 2 + 3x,then what is f(−9)?

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 20-12-2021

Answer:

f(-9) = 135

Step-by-step explanation:

Replace x with -9, and evaluate the expression.

f(x) = 2x² + 3x

f(-9) = 2(-9)² + 3(-9)

f(-9) = 2(81) - 27

f(-9) = 162 - 27

f(-9) = 135

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