If the polynomial function

has a multiplicity of 2 at the point (−1, 0) then the factor (x-(-1))=(x+1) twice enters the polynomial representation. So, you have known one part of the left side of the polynomial function that is

.
If polynomial function passes through the point (7,0), then

and since

you have that c=7.
At last, if polynomial function passes through the point (0,-14), then

and

, so a=2.
Answer: a=2.
Using y2-y1/x2-x1 m=24/6 so the slope is +4
Using proportions, it is found that:
- The fraction that shows the proportion of customers who voted for cheddar flavor is

- 56% of customers voted for cheddar flavor.
- A proportion is the <u>number of desired outcomes divided by the number of total outcomes</u>.
- A percentage is the <u>proportion multiplied by 100%</u>.
In this question, 42 out of 75 customers voted for the cheddar flavor, hence:

That is, the fraction that shows the proportion of customers who voted for cheddar flavor is 
The percentage is:

56% of customers voted for cheddar flavor.
To learn more about proportions, you can take a look at brainly.com/question/24372153