SOLUTION: Anne buys a plant whose height is 8 cm. The plant is growing at a rate of 4/5 cm per week. When will its height exceed 13 3/5 cm?ou I think you have to write an expression,

Question 148571This question is from textbook
: Anne buys a plant whose height is 8 cm. The plant is growing at a rate of 4/5 cm per week. When will its height exceed 13 3/5 cm?ou
I think you have to write an expression, but this is where i get lost. I don't even know where i should start. Don't give me answer, but if you can start me off that would be great! This question is from textbook

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Any linear equation can be modeled by

In this case, the starting height is and the rate of growth is . So after plugging this info in, we get

Now simply plug in or and solve for x to find out when the plant will reach 13 3/5 cm

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