SOLUTION: I am stuck on this problem, can you help me out please? Thank you! 2) For the function y = x2 - 4x - 5, perform the following tasks: a) Put the function in the form y = a(x

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Question 81612: I am stuck on this problem, can you help me out please? Thank you!
2) For the function y = x2 - 4x - 5, perform the following tasks:
a) Put the function in the form y = a(x - h)2 + k.
Answer:
Show work in this space

b) What is the equation for the line of symmetry for the graph of this function?
Answer: 0

c) Graph the function using the equation in part a. Explain why it is not necessary to plot points to graph when using y = a (x � h)2 + k.
Show graph here.

Explanation of graphing.

d) In your own words, describe how this graph compares to the graph of y = x2?

Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
2) For the function y = x^2 - 4x - 5, perform the following tasks:
a) Put the function in the form y = a(x - h)2 + k.
Answer:
Show work in this space
y = x^2-4x+4-5-4
y = (x-2)^2 - 9

b) What is the equation for the line of symmetry for the graph of this function?
Answer: 0
x=2

c) Graph the function using the equation in part a. Explain why it is not necessary to plot points to graph when using y = a (x � h)2 + k.
Show graph here.
The vertex is at (h,k) ; A determines if the parabola opens up or down.

Explanation of graphing.

d) In your own words, describe how this graph compares to the graph of y = x2?
y = (x-2)^2 - 9
The (x-2)^2 moves x^2 two to the right.
The -9 moves the graph down 9.
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y = x^2 - 4x - 5

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Cheers,
Stan H.

SOLUTION: I am stuck on this problem, can you help me out please? Thank you! 2) For the function y = x2 - 4x - 5, perform the following tasks: a) Put the function in the form y = a(x - h)