rodriguezgsylvia
rodriguezgsylvia rodriguezgsylvia
  • 08-04-2020
  • Mathematics
contestada

Which is the graph of f(x) = (x - 1)(x + 4)?

Which is the graph of fx x 1x 4 class=

Respuesta :

r3t40
r3t40 r3t40
  • 08-04-2020

You can determine this by finding zeros of quadratic function,

[tex](x-1)(x+4)=0\implies x_1=1, x_2=-4[/tex].

Which eliminates first and third option.

Now we have up and down parabolas left.

If we factor [tex](x-1)(x+4)=x^2+4x+\dots[/tex] we find that the coefficient before [tex]x^2[/tex] determines how it is turned, since its positive its an upward turned parabola hence the answer is the last graph.

Hope this helps.

Answer Link
eliasayala913 eliasayala913
  • 20-05-2020

Answer:

last graph

Step-by-step explanation:

Answer Link

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