A function f (x) = 2X + x1. A - determine the value of f (3) b-calculate the zero function

Given that the function is given by:

f (x) = 2x+x

when x=3, then:

f (3) = 2 (3) + 3

f (3) = 6+3

f (3) = 9

b] The zero of the function will be given by:

f (x) = 2x+x=3x

When x=0 then f (x) = 0, hence the zero of the function will be at x=0