imhereforas imhereforas
  • 24-10-2020
  • Mathematics
contestada

Given f(x) = 2x^2+4x−6, evaluate f(−2).

a) 2
b) -6
c) -2
d) 10

Respuesta :

ZJSG09112007
ZJSG09112007 ZJSG09112007
  • 24-10-2020

Answer:

b) -6

Step-by-step explanation:

[tex]f(x) = 2x^2+4x-6\\\\f(-2) = ?\\\\[/tex]

Substitute ; -2 for x in the given equation

[tex]f(-2) = 2(-2)^2 +4(-2)-6\\\\f(-2) =2\times\:4+4\left(-2\right)-6\\\\f(-2) =8+4\left(-2\right)-6\\\\f(-2) =8-8-6\\\\f(-2) = -6[/tex]

Answer Link
wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 24-10-2020

Answer:

-6

Step-by-step explanation:

f(x) = 2x^2+4x−6

Let x = -2

f(-2) = 2(-2)^2+4(-2)−6

       = 2 (4) -8 -6

       = 8-8-6

      =-6

     

Answer Link

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