Let x and x+1 be the two consecutive integers.
Then their sum is x + (x+1) = 2x + 1.
The question is worded a bit strangely (in my opinion anyway), but I think your teacher wants you to describe how exponents work.
Let's say we had the expression 
The base is 5 as its the bottom most value (think of something like the base of a tree or building). The exponent is 3.
The exponent of 3 tells the reader to multiply the base 5 by itself 3 times like so

With larger exponents, it becomes more tedious to write out all the repeated multiplications, which is why many calculators have an exponent button to save time.
You would need to change the slope to -6 because perpendicular lines have opposite reciprocal slopes.
Answer:
True
Step-by-step explanation:
The definition of diameter is "a straight line passing from side to side through the center of a body or figure, especially a circle or sphere."