SOLUTION: Sorry I missed out a word. Should be integers not whole number.? Please help, Consider the function f(x)=x^2+4x+1? Consider the function f(x)=x^2+4x+1 a) Find h, the x-coordina

Question 123137: Sorry I missed out a word. Should be integers not whole number.?
Please help, Consider the function f(x)=x^2+4x+1?
Consider the function f(x)=x^2+4x+1
a) Find h, the x-coordinate of the vertex of this parabola.
-------------------------...
b) Substitute the two integers immediately to the left and right of H into the function to find the corresponding Y. Fill in the table below. Make sure your X-values are in increasing order in your table.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Consider the function f(x)=x^2+4x+1
a) Find h, the x-coordinate of the vertex of this parabola.
-------------------------...
h is the x-coordinate of the max or min pt which occurs
when x = -b/2a.
------------------
h = -b/2a = -4/(2*1) = -2
---------------------
b) Substitute the two integers immediately to the left and right of H into the function to find the corresponding Y. Fill in the table below. Make sure your X-values are in increasing order in your table.
-----------------------
If x = -4, y = (-4)^2+4*-4+1 = 1
If x = -3, y = (-3)^2+4*-3+1 = -2
If x = -2, y = (-2)^2+4*-2+1 = -3
If x = -1, y = (-1)^2+4*-1+1 = -2
If x = 0 , y = (0)^2 + 4*0+1 = 1
-------------------------------------

Cheers,
Stan H.

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