When measuring the level of water in a river, +3 means a rise of 3 feet in the level of the water, and –3 means a drop of 3 feet in the level of water. A. Use a complete sentence to describe what 2(–3) means in the context of this problem.

B. Calculate 2(–3) and write a sentence describing what the answer means in the context of this problem

i am not sure :

step-by-step explanation:

the opening of this porabola is facing up

step-by-step explanation:

step-by-step explanation:

where is the question is there is a formula or is there not one

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function