extra points!!no links tho
given the function f(x)=x^2+10x+20
a.state whether the vertex represents a maximum or a minimum point for your function. explain your answer
b.rewrite f(x) in vertex form by completing the square
extra points!!no links tho
given the function f(x)=x^2+10x+20
a.state whether the vertex represents a maximum or a minimum point for your function. explain your answer
b.rewrite f(x) in vertex form by completing the square
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.
[tex]f(x)=x^2+10x+20\\\\f(x)=\underline{x^2+10x+25} – 25+20\\\\f(x)=(x+5)^2-5[/tex]