Question 968610
Identify the min/max (vertex) value. Then sketch the graph.
f(x)-x^2-10x-30
complete the square:
f(x)-(x^2+10x+25)+25-30
f(x)-(x+5)^2-5
vertex: (-5, -5)
max value=-5
see graph below:
{{{ graph( 300, 300, -20,10, -10, 10,-x^2-10x-30) }}}