<span>x² - 18x - 4 = ox² - 18x = 4x² - 18x + (18/2)² = 4 + (18/2)²x² - 18x + 81
</span>
One thing everyone always forgets is we don't usually see the <em>entire</em> graph. Once out of the frame, these functions can do anything they want.
From what we can see, only the bottom right one is always decreasing.
Answer: bottom right
By the way, the top right graph (a vertical line) isn't a function.
Answer:
the answer is 5/8
Step-by-step explanation:
I cannot suggest anything other than the set of real numbers here, but maybe someone else can provide a better answer. As long as you increase or decrease x (which is a real number) then you will get a real number, or the infinite set of real numbers.
Answer:
<h2>
19.596 feet</h2>
Step-by-step explanation:
Use the pythagorean theorem.
a^2 + b^2 = c^2
a = 20ft
c = 28ft
400 + b^2 = 784
b^2 = 384
b = 19.596
