SOLUTION: a telephone company charges $4.95 per month for long distance calls plus $0.05 per minute. the monthly cost c of long distance calls can be described by the equation c=0.05m+4.95,

Algebra ->  Algebra  -> Linear-equations -> SOLUTION: a telephone company charges $4.95 per month for long distance calls plus $0.05 per minute. the monthly cost c of long distance calls can be described by the equation c=0.05m+4.95,      Log On

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Question 124271: a telephone company charges $4.95 per month for long distance calls plus $0.05
per minute. the monthly cost c of long distance calls can be described by the equation c=0.05m+4.95, where m is the number of minutes
1)find the y-intercept of the graph of the equation
2)graph the equation
3)if you talk 140 minutes, what is the monthly costfor long distance
Answer by anne(47) About Me  (Show Source):
You can put this solution on YOUR website!
Ok
so this is what we got to do.
a) the y intercept is 4.95 because it is the base or initial cost and if you talk no minutes you still pay that amount.
b) plot a point at 4.95 and then go 0.05 up and 1 sideways.so you have your graph.
c)y= 0.05m+4.95
y= 0.05(140) +4.95
y= 7+4.95
y= 11.95
the cost for 140 minutes is $ 11.95.
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