Respuesta :
[tex]f(x)=2x^2+1\\\\\text{substitute the value of x to the equation of the function}\\\\f(3)=2\cdot3^2+1=2\cdot9+1=18+1=19[/tex]
Answer:
The answer is 19
Step-by-step explanation:
You solve it like an regular equation
HOPE THIS HELPS
STAY SAFE:)