# Math Help - Graphing help?

1. ## Graphing help?

i need some help determining the vertex and the line of symetry of graphs and drawing graphs. i also need help identfying the domain and range for certain functions.

Y=x^2+3

Y=-x^2+3x+5

thank you and God bless.

2. Firstly i hope your name actually isnt michael hunt, that would be a bit unfortunate.

If you have the equations in turning point form these are easy to find
turning point form: $(x-a)^2+k$
a is the horizontal displacement of the graph from the origin, and k is the vertical displacement. the vertex of a parabola will therefore be at (a,k)
The line of symmetry will be at x=a
domain and range is easiest to find once you have graphed the function, you just see the values of x and y for which the graph is defined.