Question

A tree 7 ft tall grows an average of 6 in. each year. Which equation models the tree’s height h after x years?

Answer 1

Ok so, you know what the function of a linear equation is correct?

Answer 2

\(y=mx+b\)

Answer 3

So if a tree is already 7 feet tall, your b would be 7.
\(y=mx+7\)

Then, it says it grows by 6 inches a year, so when converted to feet, you would have \(\dfrac{1}{2}\).
\(y=\dfrac{1}{2}x+7\)

So that would be your equation.
\(y=\dfrac{1}{2}x+7\)