Vertex Form
Vertex Form has many components in the expression.
y = a ( x - h )^2 + k
When Graphing this is what the terms represent:
The y represents the y- intercept.
The a represents a represents whether the parabola opens up or down.
The x represents the X-intercept.
The h represents where the X coordinate is on the vertex. Also known as the axis of symmetry.
The ^2 means that is a quadratic relationship. The ^2 creates the parabola shape on the graph.
The k represents the Y coordinate of the Vertex. Also known as the Optimal value.
These are some examples of vertex form equations:
y= 2(x+3)^2+9
y=-4(x-6)^2+21
Here is an example of an vertex equation graphed:
y = a ( x - h )^2 + k
When Graphing this is what the terms represent:
The y represents the y- intercept.
The a represents a represents whether the parabola opens up or down.
The x represents the X-intercept.
The h represents where the X coordinate is on the vertex. Also known as the axis of symmetry.
The ^2 means that is a quadratic relationship. The ^2 creates the parabola shape on the graph.
The k represents the Y coordinate of the Vertex. Also known as the Optimal value.
These are some examples of vertex form equations:
y= 2(x+3)^2+9
y=-4(x-6)^2+21
Here is an example of an vertex equation graphed: