Answer:
BELOW
Step-by-step explanation:
[tex]f(x)=2x+1[/tex]
Substitute values into given equation :
[tex]f(4) = ?\\\\f(4) = 2(4)+1\\\\f(4) = 8+1\\\\f(4)=9[/tex]
(b).
[tex]f(-5) =2(-5)+1\\\\f(-5) = -10+1\\\\f(-5) = -9[/tex]
(c) .
[tex]f(0) =2(0)+1\\\\ f(0) = 0+1\\\\ f(0) =1[/tex]
(d) .
[tex]f(a) =2(a)+1\\\\ f(a) = 2a+1[/tex]
