An even function is a function where positive and negative values of x give you the same result.
Where f(2) = f(-2) and f(3) = f(-3)
To formally check it, you need to evaluate f(-x) and see if you get the original function back.
Graphically, an even function is symmetrical over the y-axis.
The only graph here that does all of that is f(x) = |x|
Step-by-step explanation:
I would say there are 7 oranges out of ten, ummm and
7/10 divided by 9/11
=77/90
(not really sure what your asking)
Since these are box plots, they're based on a lot of data, and we cannot say for certain whether something will be true, but it can give us a good idea. So this means that options A & B are out, since they say 'will always', but we can never say for sure with box plots.
The boxes of the box plot represent basically the average of the data. The beginning of the box is the first quartile, the end of the box is the third quartile, and the line in the middle is the median, which is the middle of the data. Since the box in the box plot of Design A is greater than the box in the box plot of Design B, we can say it's likely that candle Design A will last longer than candle Design B, or option C.
Remember you can do anything to an equaiton as long as you do it to both sides
7x-4=5x+15
minus 5x both sides
2x-4=15
add 4 both sides
2x=19
divide by 2
x=19/2