The graph shows a scatter pilot and a linear model of Joanna's height, in inches, for various ages. What is the best interpretation of the y-intercept of the line?

Statement B is correct.
The power of x is 1 is called a linear system
The graph can be converted into a line equation y = mx + c
where the value of c is 30 and m is 2.5.
Here, c refers to the height when she was born.
Thus, statement B is correct.
More about linear system link is given below
https://brainly.com/question/20379472