veronicaa45 veronicaa45
  • 24-01-2021
  • Mathematics
contestada

Identify the value of a if
y= a (x - 2) (2x + 4)
and the point (4,8) is on the graph.
Pls help fast

Respuesta :

jenniferofobor06 jenniferofobor06
  • 24-01-2021

Answer:

a=1/3

Step-by-step explanation:

from the point on the graph

x=4 and y=8

substitute them into the equation:

y=a(x-2) (2x+4)

you will get

8=a(4-2) (2(4)+4)

8=a(2) (8+4)

8=a(2) (12)

8=2a×12

8=24a

divide both sides by 24

8/24=24a/24

1/3=a or a=1/3

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