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

$(0,3)$

$f(x) =2x^2+3$ For a graph in the form $f(x) = a(x-h)^2+k$, the axis of symmetry is the line $x=h$. $f(x) =2x^2+3$ $f(x) =2(x-0)^2+3$ Axis of symmetry $x=0$ Vertex $x=0$ $f(x) =2x^2+3$ $f(0) =2*0^2+3$ $f(0)=2*0+3$ $f(0)=0+3$ $f(0)=3$