Question

Let f(x)=x^2+x+14. What is the value of f(x) for which the tangent line to the graph of y=f(x) is parallel to the x -axis

Answer 1

isnt that at the vertex?

Answer 2

-b/2a i think is the end results

Answer 3

<------------------->
-sqrt -b/2a +sqrt
vertex

Answer 4

of course youre particular favorite method of finding the vertex is just a ssuitable