I only know 1 & 4 .. 2 & 3 seem hard to me ..
X >7 
X< -7
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Hello :
f(x) = 4(x2 − 6x + 3² - 3²____) + 20 = 4((x2 − 6x + 3²) - 3²____) + 20<span>
      = 4(x-3)² -36+20
</span>f(x) = 4(x-3)² -16 (vertex form)
        
             
        
        
        
Answer: Down
Step-by-step explanation:
We know that the graph of  y
=
x
4  has both arms pointing up.
Now, since the leading coefficient of  f
(
x
)  is negative, both arms are pointing down. Thus the right side is pointing down.
 
        
             
        
        
        
Answer:
Z = 3
Step-by-step explanation:
In a normal distribution, the Z score that corresponds with a data point x is calculated using the formula;

For the case given, the z score will be;
