Question

Help with quadratic functions please i dont understand how to graph them..

Graph the function. Identify the vertex and axis of symmetry.
f(x)=x^2+4x+1

axis of symmetry:x=2
vertex: (2, -3)

axis of symmetry: x=-2
vertex: (-2,3)

axis of symmetry:x=-2
vertex:(-2,3)

axis of symmetry: x=2
vertex: (2,3)

Answer 1

For the first answer

Answer 2

for the 2nd answer

Answer 3

for the 3rd answer

Answer 4

for the 4th answer

Answer 5

do you know how to `complete the square` ?

Answer 6

check your answer choices again
i think there is typo

Answer 7

a*

Answer 8

to graph the quadratic equation you should rewrite that equation into vertex form
y=a(x-h)^2+k
or you can use the formula to find x -coordinate of the vertex \[\huge\rm \frac{ -b }{ 2a }\]
then substitute x for its value into the x^2+4x+1 to find y -coordinate