Chapter 11 - Section 11.5 - Quadratic Functions and Their Graphs - Vocabulary and Readiness Check - Page 808: 12

$(0, -1)$

$h(x) =x^2-1$ For a graph in the form $f(x) = a(x-h)^2+k$, the axis of symmetry is the line $x=h$. $h(x) =x^2-1$ $h(x) =(x-0)^2-1$ Axis of symmetry $x=0$ Vertex $x=0$ $h(x) =x^2-1$ $h(0) =0^2-1$ $h(0)=0-1$ $h(0)=-1$