SOLUTION: Hello my name is mya clarke i am a freshman (9th grade) and i take Algebra 1 and i have a new teacher and i get confused what he says so heres my question: how do you solve this pr

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Question 813625: Hello my name is mya clarke i am a freshman (9th grade) and i take Algebra 1 and i have a new teacher and i get confused what he says so heres my question: how do you solve this problem below:
origianl: 15 tickets/25$ current: 15 tickets/75$ range: 1998-2002 and in my class were doing Rate of Change and my teacher answer is this:
$77-$25/4=52/4=13/1 is this right if so can you explain it to me in a way i can understand how to solve any problem with Rate of change? thank you
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

1998, Cost $25

2002, cost $77

Rate of change: cost/year = %2877-25%29%2F%282002-1998%29+=+52%2F4+=+31%2F1

Cost went up $31 per year from 1998 to 2002