basic questions how to find x

hello

if i have a function y=f(x) and x is given. What function do I use to calculte the corresponding y?

- symbolical - numerical

example: y=5x+2 and x=2 question give y? thanks

Answer 1

[Azzi Abdelmalek]

y=@(x) 5*x+2 
y(2)

Answer 2

[Amir Ghasemiyan]

and this is another way:

function y=y(x)
y=5*x+2;

and in command window:

y(2)