If f (x) = x-3, f (3)=

f(3) = 0

Step-by-step explanation:

Plug in 3 for x:

f(x) = x - 3

f(3) = (3) - 3

Simplify. Combine like terms:

f(3) = (3) - 3

f(3) = 3 - 3 = 0

f(3) = 0

f(3) = 0 is your answer.

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0

Step-by-step explanation:

f (x) = x-3,

Let x = 3

f (3)= 3-3

      = 0

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!