If a polynomial function f(x) has roots 0,4,and 3+ √11,what must also be a root of f(x) 3+i√11

3 -

Step-by-step explanation:

Radical roots occur in conjugate pairs.

3 + is a root then so is 3 -

Step-by-step explanation:

The function has a grade of 4, becaus it has 4 roots.

Now, if one of its roots is , it means there fourth is , because square roots have two results, one positive and one negative.

So, the function cannot have a positive square root solution and not have a negative root solution.

Therefore, the right answer is .

i need the options

step-by-step explanation:

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.