right
Above
the first number out in front you pig
They are the x-values (if any) of the points at which the y-value of the equation representing a parabola is 0. These are the points at which the parabola crosses the x-axis.
3
If the value of the variable is negative then the parabola opens downwards and when the value of variable is positive the parabola opens upward.
if the value is negative, it opens downard
To find the value of a in a parabola opening up or down subtract the y-value of the parabola at the vertex from the y-value of the point on the parabola that is one unit to the right of the vertex.
A parabola has a minimum value when it looks like the letter U
right
Above
When you look at the parabola if it opens downwards then the parabola has a maximum value (because it is the highest point on the graph) if it opens upward then the parabola has a minimum value (because it's the lowest possible point on the graph)
The vertex of this parabola is at -2 -3 When the y-value is -2 the x-value is -5. The coefficient of the squared term in the parabola's equation is -3.
The vertex of this parabola is at 5 5 When the x-value is 6 the y-value is -1. The coefficient of the squared expression in the parabola's equation is -6.
the first number out in front you pig
All of the points on a parabola define a parabola. However, the vertex is the point in which the y value is only used for one point on the parabola.
-3