Let's you and me discuss a few things that you already know:
-- What's a y-intercept ?
The y-intercept on a graph is the place where it crosses the y-axis.
-- That's the value of 'x' at the y-intercept ?
The y-intercept is on the y-axis, so 'x' is zero there.
-- Good !  So how would you find the y-intercept of a function ?
You say that  x=0  and look at what 'y' is.
-- Very nice.  What's the function in this question ?
The function is
             f(x)  [or 'y']  =  x⁴ + 4x³ - 12x² -32x + 64   .
--  Excellent.   What's the value oif that function  (or 'y')  when  x=0  ?    
       It's just  64 .
-- Beautiful.
   Are there any answer choices that cross the y-axis at  64 ?
   How many are there ?
   There's only one.
   It's the upper one on the right hand side.
        
             
        
        
        
Hey You! 
2 11/16 = 2.6875 as a decimal.
That's Your Answer! ^
        
                    
             
        
        
        
Answer:
6
Step-by-step explanation:
To find the third term substitute n = 3 into the n th term formula
a(3) = 

       = 

       =  × 4 = 6
 × 4 = 6
 
        
             
        
        
        
Answer:
   B.  30x
   D.  x(45-15)
Step-by-step explanation:
The distributive property lets you factor out the common factor of x. The sum of coefficients can be simplified to a single coefficient.
   45x -15x = x(45 -15) = 30x
 
        
             
        
        
        
Answer:
(
−
∞
,
∞
)  {
x
|
x
∈
R
}
Step-by-step explanation:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.