Answer: y = 4x + 80
Step-by-step explanation:
<u>It's important to write down what you know.</u>
For example, I'd write that she grows 4 cm every 2 months. I'd also write that she's already 80 cm.
We also know that X is the months and Y is the centimeters, so therefore...
Let x = number of months
Let y = length in centimeters
"Let" statements are important to keep your information organized.
Now, put all the information together.
We know the number of months and "4" need together, as they correlate. This gives us 4x. We also know she's ALREADY 80, which would go along with the amount she's grown. This gives us 4x+80. We know "y" represents the total, which is y=4x+80.
<em>Please let me know if you need any more help :)</em>
<em>Have an amazing night!</em>