SOLUTION: Without graphing ,tell whether the slope of a that models each situation is positive. negative, zero, or undefined. Then find the slope. Question: The cost of tickets to the am

Question 693470: Without graphing ,tell whether the slope of a that models each situation is positive. negative, zero, or undefined. Then find the slope.
Question: The cost of tickets to the amusement park is $19.50 for 1 ticket and $ 78 for 4 tickets.
I know it's positive but how I can I find the slope ? D:

Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
y = cost
x = # of tickts
...
(1, 19.5) and (4, 78)
slope is
...
is the equation
CHECK: if x = 4, y is 78
compared to y=mx+b, the slope, m is 19.5 and y intercept, b, is 0.
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