(x+5)(x-5)
= x^2 - 5x + 5x - 25
= x^2 - 25
(5x+3)(5x-3)
= 25x^2 - 15x + 15x - 9
= 25x^2 - 9
do you see the pattern? both the coefficient on x and constant multiply together to make a perfect square and the middle term, also known as "b" term cancels out leaving a binomial
Answer:
D. An input is the value that determines another based on the relation or function rule, usually the x-values in a set of ordered pairs on a tale or graph.
Step-by-step explanation:
For any relation (given ordered pairs), there are x - values and y-values, also called inputs and outputs. For every input, there is an output. For example, given the function rule:
y = 2x + 1
If x = 1, y = 3
If x = 2, y = 5
and, so on..
So, the output (y) is determined by the input (x) and is usually the x-values.
I think the greatest possible error that may occur in this kind of question is how this measurements are measured and the units is either correct or not. The factor that you should consider in a measurement is first the accuracy, second is the unit and third is the correct conversion.