Graphing Quadratics: Vertex/Standard form Flashcards
axis of symmetry
x= b/2a
also how you find the vertex
when graphing if the number before x is negative, what does the graph look like
opens down, has a max.
what does it mean it you get an imaginary number when square rooting
the coordinates don’t touch the x-axis
how do you find the x-int. in standard form
used quad. formula -b+/-square root (b)24-ac/2a
how do you find the x-int. in vertex form
move C to the other side and take the square root of both sides
factored form
y=(x-2)(x+4)
whats the standard form
y= x2+3x+2
Vertex form
y=a(x-h)2+C
how do you find the y-intercept in standard form
(0,C) olug in 0 for x in the inital equation
how do you find the x-int in factored form
use zero product property
when graphing, if the number before x is positive, what does the graph look like
opens up and has a minimum