The images below show some examples of vertices (“vertices” is
the plural form of the word “vertex”). Click each graph to
take a closer look and to read about its vertex.
\(\mathsf{ f(x) = x^2 + 8x - 10 }\)
The vertex is (-4, -26). It is the lowest point on the
graph.
\(\mathsf{ f(x) = 3x^2 + 12x + 7 }\)
The vertex is (-2, -5). It is the lowest point on the
graph.
\(\mathsf{ f(x) = x2 + 8x - 10 }\)
The vertex is (1, -2). It is the highest point on the
graph.