Functions · S3
Quadratic functions
Question 1/8+12 XP
For f(x)=1x2+5: calculate f(3).
Quadratic functionf(x) = x² + 5
graph of fvertexaxis of symmetry
The vertex sits at (0, 5); the parabola opens upward and mirrors across the line x = 0. At x = 0 the value is 5.