Question 891744
f(x)=x^2+6x+4 
1. Find the vertex
2. State the range of the function
3. On what interval is the function decreasing?
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f(x)=x^2+6x+4 
complete the square:
f(x)=(x^2+6x+9)-9+4
f(x)=(x+3)^2-5
vertex:(-3,-5)
range:(-5,∞)
interval function is decreasing:(-∞,-3)
see graph below:{{{ graph( 300, 300, -10, 10, -10, 10,(x+3)^2-5) }}}