Answer:
not linear 
Step-by-step explanation:
this equation becomes y = -4x² + 32x which is a quadratic equation that, when graphed, forms an upside down u-shaped curve (upside down because the x² term is negative; if it's positive then the curve is u-shaped)
 
        
                    
             
        
        
        
Answer:
<h2>For #1=     D = 24.25</h2><h2>     #2=       D= 21</h2>
Step-by-step explanation:
hope this helps. pls mrk me branliest :)
 
        
                    
             
        
        
        
The center after enlargement using scale factor is (4.5,0.5).
What is Scale factor ?
   The ratio between the scale of an original thing and a new object that is a representation of it but is a different size is known as a scale factor (bigger or smaller). For instance, if a rectangle has sides of 2 cm and 4 cm, it can be made larger by multiplying each side by a certain number, in this case 2. 
Here the given coordinate point is,
=> (x,y)=(3,1)
Now enlarging the coordinator using scale factor k
=> (x,y)= (kx,ky)
Now put k=2 then 
=> (x,y)=(0.5*3, 0.5*1)
=>(x,y) = (4.5,0.5)
Hence the answer is (4.5,0.5).
To learn more about scale factor 
brainly.com/question/23652612
#SPJ13
 
        
             
        
        
        
The answer is 
7.9306Using the formula in the attached:
Where: xi = sample value; μ = sample mean; n = sample size
1.) Calculate the mean first:
μ = 12.0 + 18.3 + 29.6 + 14.3 + 27.8 / 5
   = 102 / 5
μ = 20.4
2.) Using the mean, calculate (xi - μ)² for each value:
(12.0 - 20.4)² = 70.56
(18.3 - 20.4)² = 4.41
(29.6 - 20.4)² = 84.64
(14.3 - 20.4)² = 37.21
(27.8 - 20.4)² = 54.76
3.) Sum the squared differences and divide by n - 1.
μ = 70.56 + 4.41 + 84.64 + 37.21 + 54.76
   = 251.58 / 5-1
μ = 
62.895 (this is now called sample variance)
4.) Get the square root of the sample variance:
 √62.895 = 
7.9306
 
        
        
        
Six Lions. Please mark this as brainliest answer