​What is an x-intercept?

​1. Where the graph crosses the x-axis

​2. Also called a zero, root, and solution

​3. The y-value of the x-intercept is always 0

​4. Find the x-intercepts of the quadratic in the table:

​5. The zeros are (2,0) and (-10,0)

​What is a y-intercept?

​1. The y-intercept is where the graph crosses the y-axis

​2. When the graph crosses the y-axis, the x value is always 0

​3. To find the y-intercept, look at the table and see where x = 0

​​4. The y-int is (0,-20)

​What is a vertex?

​1. The vertex is the highest point of a graph

​2. To find it, graph the quadratic in Desmos

​3. Zoom in or out until you see the vertex

​4. Click on the point to get its coordinates

​5. You can also look at the table and see where

​the y-values change from increasing to

​decreasing or vice versa

​6. The vertex is (6,16)

​What is the axis of symmetry? (AOS)

​1. The axis of symmetry is a vertical line that goes through the vertex, dividing the parabola in half

​2. The AOS goes through the x-value of the vertex

​3. To find the AOS, find the vertex and identify the x-value

​4. The equation will be x=x-value of vertex