If [tex]y=2x+1[/tex] then that means [tex]f(x)=2x+3[/tex] and when you plug in [tex]x=0[/tex] you get [tex]f(0)=2\cdot0+3=\boxed{3}[/tex].
Hope this helps :)
Answer:
3
Step-by-step explanation:
y=2x+3
f(x)=2x+3
f(0)=2(0)+3=0+3=3
