A group of adults were asked how many children they have in their families. The bar graph below shows the number of adults who indicated each number of children.

1
2
3
4
5
6
Number of Children
0
1
2
3
4
5

How many adults were questioned?

What percentage of the adults questioned had 5 children?

%
Get help: Video

Not a factor

Step-by-step explanation:

According to the factor theorem, if f(a) = 0 then (x-a) would be a factor of the polynomial f(x)

So, for the given case, if f(-7) = 0, then f(7) would be a factor of the given polynomial f(x)

To find f(-7) we replace every occurrence of x with -7 in the above equation.

Since f(-7) is not equal to zero, (x+7) is not a factor of the given polynomial.