anonymous
  • anonymous
ASAP PLZ HELP ASAP An expression is shown below: f(x) = -16x2 + 60x + 16 Part A: What are the x-intercepts of the graph of the f(x)? Show your work. Part B: Is the vertex of the graph of f(x) going to be a maximum or minimum? What are the coordinates of the vertex? Justify your answers and show your work. Part C: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part A and Part B to draw the graph.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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DanJS
  • DanJS
if y = f(x) = 0 then, it will cross the X axis there at points (x , 0)
anonymous
  • anonymous
ok
DanJS
  • DanJS
y = 0 = -16x^2 + 60x + 16

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DanJS
  • DanJS
maybe divide everything by 4 first
anonymous
  • anonymous
ok
DanJS
  • DanJS
\[0 = 4x^2-15x+4\] i divided both sides by -4, can you factor that now?
anonymous
  • anonymous
maybe
DanJS
  • DanJS
what you think... ?
anonymous
  • anonymous
idk im bad with math :(
anonymous
  • anonymous
4x^2−11?
DanJS
  • DanJS
You can expand that to check if it is right... 0 =(x - 4)* (4x +1)
DanJS
  • DanJS
So if either of those two quantities is Zero, then the equation is true... x - 4 = 0 or 4x+1 = 0 solve for the two x intercepts

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