Answer:
 y-intercept is the value of y when x is equal to zero. Because the y intercept is a point on a graph, you'll usually write it in point/ coordinate form.
Step-by-step explanation:
The y-intercept is where the parabola of a function crosses (or intercepts) the y axis.
 
        
             
        
        
        
Subtract the cost of the hard drive from the original $1284 and divide the answer you got by the 9 sticks of memory for your answer.
        
                    
             
        
        
        
=8x + (-3) (5) + (-3) (9x)
=8x + -15 + -27x 
=8x + -15 + -27x
(8x + -27x) + (-15)
19x +-15
19x -15
 
        
             
        
        
        
Answer:
 2yrs
Step-by-step explanation:
Given parameters: 
Amount of interest earned  = $40
Principal  = $400
Interest rate  = 5% 
Unknown: 
Time taken for the money to be in bank = ? 
Solution: 
    The formula for interest is given as:
          I =  
   
     Where I is the interest
               P is the principal
                R is the rate 
                T is the time 
     So;
     100I  = PRT
        T  =  =
   =  = 2yrs
  = 2yrs