Answer:
B. Linear Function
Step-by-step explanation:
a.) a quadratic function is in the form [tex]f(x)=ax^2+bx+c[/tex] .
b.) a linear function is in the form [tex]y=mx+b[/tex].
c.) a cubic function is in the form [tex]f(x)=ax^3+bx^2+cx+d[/tex]
The only option that matches the given function is b.
:Done