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Ann wants to choose from two telephone plans. Plan A involves a fixed charge of $10 per month and call charges at $0.10 per minute. Plan B involves a fixed charge of $15 per month and call charges at $0.08 per minute. 
Plan A $10 + .10/minute 
Plan B $15 + .08/minute 
If 250 minutes are used: 
Plan A: $10+$25=$35 
Plan B: $15+$20=$35 
If 400 minutes are used: 
Plan A: $10+$40=$50 
Plan B: $15+$32=$47 
B is the correct answer. How to test it: 
Plan A: $10+(.10*249 minutes) 
$10+$24.9=$34.9 
Plan B: $15+(.08*249 minutes) 
$15+$19.92=$34.92 
Plan A < Plan B if less than 250 minutes are used.
        
             
        
        
        
Answer:
Step-by-step explanation:
What you've provided is only a function. What's the complete question?
 
        
             
        
        
        
Answer:
Therefore the y-intercept of the function is 4.
Step-by-step explanation:
Intercepts:
The line which intersect on x-axis and y-axis are called intercepts.
y-intercept: The line or function which intersect at y-axis. So when the line intersect at y-axis, X coordinate is zero.
So in the given Function Put x = 0 we will get the y-intercept

Put x =0


Therefore the y-intercept of the function is 4.
 
        
             
        
        
        
Answer:
B
Step-by-step explanation: