Question

Given the function f defined by the formula f(x)=2x+1 find the following:

(a) f(4)
(b) f(-5)
(c) f(0)
(a) f(a)

Answer 1

BELOW

Explanation:

`f(x)=2x+1`

Substitute values into given equation :

`f(4) = ?\\\\f(4) = 2(4)+1\\\\f(4) = 8+1\\\\f(4)=9`

(b).

`f(-5) =2(-5)+1\\\\f(-5) = -10+1\\\\f(-5) = -9`

(c) .

`f(0) =2(0)+1\\\\ f(0) = 0+1\\\\ f(0) =1`

(d) .

`f(a) =2(a)+1\\\\ f(a) = 2a+1`