Question

What is the vertex of this quadratic function?
f(x) = 2x2 + 4x − 5

Answer 1

which math class are you taking

Answer 2

math2

Answer 3

algebra

Answer 4

oh yeah

Answer 5

so you need to turn y = ax^2 + bx + c into

y = a*(x-h)^2 + k

the vertex form

Answer 6

the vertex in that is the point (h,k)

Answer 7

i dont get it

Answer 8

U know how to find the axis of symmetry?

Answer 9

you can play with that , or simply remember,

the x coordinate of the vertex of y = ax^2 + bx + c is

x = -b / (2*a)

Answer 10

as jenma said , or also the axis of symm

Answer 11

then use that x value , and calculate what y is,, the point (x,y) is the vertex

Answer 12

here is an example i just found...
http://hotmath.com/hotmath_help/topics/vertex-of-a-parabola.html

Answer 13

gl

Answer 14

ty

Answer 15

Yes @DanJS . Find the axis of symmetry first and then when u find the answer u would do the substitute of the equation and u will find the vertex...