Step-by-step explanation:
The last step is a little wrong. Lemme show you:
x(x + 2) + (x + 2)
Imagine there is an invisible '1' infront of (x + 2) like this:
= x(x + 2) + 1(x + 2)
Now we can combine the like terms together:
= (x + 1)(x + 2)
This is the correct factorization.
 
        
             
        
        
        
Answer:
B. x
Step-by-step explanation:
The answer would be graph x. A function must be that one x value should only have one y value. graph w doesn't work since when you plug in 0, you get two y's. same thing with z. Y doesn't work since at x value of 3, it curves back so x value 2 has 2 y's. X is the only one that each x value has only one y. 
 
        
                    
             
        
        
        
Answer:
a. is True.
Step-by-step explanation:
Collinear points are on the same line.
The converse is:
If the points are on the same line the the points are collinear. This is True.
 
        
             
        
        
        
Answer:
   1.   CI = P (1 + 
 )^ n - P
         CI = A - P
       Where P is Principal 
       R is interest rate 
       n is number of years 
    2. a. Semi annually - four times in a year
        b. Monthly           -  two times in a year
        c.  annually          -  once in a year
Step-by-step explanation:
1.  Money is said to be lent at compound interest , when the interest has become due at certain fixed period say, one year, half year, etc.., is given not paid to money lender, but is added to sum lent . The amount thus obtained become principal for next month and this process repeat until last period .
i.e CI = Final period - Initial period 
or CI = A - P
or CI = P(1+ 
) ^n - P
2. (a) Semi annually 
         A = P (1 + 
 )^ n × 4
    (b)  Monthly
        A = P (1 + 
 ) ^ n × 2
    
    (c)  Annually 
        A = P (1 + 
 ) ^ n