Answer:
I do not knoww <333
Step-by-step explanation:
Open circle with an arrow to the left of the number line with the circle on 1.5 in the middle of 1 and 2
Answer:

With the vertex 
We see that b = -10 and a = 2 and then the vertes wuld be:

And the best option is:
b. (-10,2)
Step-by-step explanation:
For this problem we have the following function:

And if we compare this expression with the general expression for a parabola given by:

With the vertex 
We see that b = -10 and a = 2 and then the vertes wuld be:

And the best option is:
b. (-10,2)
this is the answer
i have checked this answer thrice
The total of two whole numbers one after another is 33. for example 10 + 11 (two consecutive integers) = 21