Question

Extra points!!no links tho

Answer 1

Answer:

             a. the  vertex represents a minimum point

             b.  f(x) = (x + 5)² - 5

Step-by-step explanation:

a.

a = 1 > 0  ← that means the parabola opens up, so the vertex is minimum of the function

b.

  $f(x)=x^2+10x+20\\\\f(x)=\underline{x^2+10x+25} - 25+20\\\\f(x)=(x+5)^2-5$