Linear models word problems
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Renata moved to her new home a few years ago. Back then, the young oak tree in her back yard was 190
centimeters tall. She measured it once a year and found that it grew at a constant rate. 3 years after she moved
into the house, the tree was 274 centimeters tall.
How fast did the tree grow?

How many years passed from the time Renata moved in until the tree was 344 centimeters tall?

Hye ryung is the president of the local chapter of the american medical students association (amsa). she is organizing local outreach and informational meetings. at her first meeting there are five people present (including herself). every month after that her group grows by 5 people. a. how many members are in the group after 6 months? b. the logistics of hosting and feeding her group at meetings was more complicated than expected. the cost of feeding 5 people at her first meeting was $30, for 10 people it was $35, for 15 it was $45, and after 6 months all of the costs had added up to $100. write a function to model the cost with the number of people attending meetings. c. what connections can you make between the linear growth of the group’s membership and the increasing costs of running meetings?

How to do this , and can some one explain

Which equation is represented by the graph below?