A reflection is a mirror image.  Placing the edge of a mirror on the x-axis will form a reflection in the x-axis.  This can also be thought of as "folding" over the x-axis.
If the original (parent) function is <span>y = f (x)</span><span>, the <span>reflection over the x-axis </span>is function</span><span> -f (x)</span><span>.</span>
 
        
        
        
Answer:
A
Step-by-step explanation:
The explicit formula for a geometric sequence is
f(n) = f(1) 
where f(1) is the first term and r the common ratio
Here f(1) = 64 and r =  =
 =  =
 =  , then
 , then
f(n) = 64  → A
 → A
 
        
             
        
        
        
Answer:
4x - 8 + 4y
Step-by-step explanation:
4(x - 2 + y)
4x - 8 + 4y
You multiply each term in the parenthesis by the number in front of it.
 
        
             
        
        
        
They need to buy six because they will end up with fifty four. 
(they cant buy five because they would end up with forty five and that wouldnt be enough)
        
             
        
        
        
I only know the first part (~_~;) it's a decaying function 
Step-by-step explanation:
Sorry I couldn't give you more info