pls someone help me with this i have asked this question so many times but nobody will help me. ;-; pls i need to turn this in in five minutes

I'll save you!

Since we know that in the space of it's fourth year to it's eighth year, it grew 10 feet, that means that the slope of our equation is or , meaning its growing 5 feet every 4 years. This means that the tree was 7 feet tall when it was first planted, and that's why it was able to reach 11 feet tall in that amount of time, so the y-intercept will be 7. Therefore your equation is: