(picture included) how do i convert these two into slope-intercept form?

The graph shown below expresses a radical function that can be written in the form f(x)=a(x+k)1/n+c what does the graph tell you about the value of n in this function

X-intercept=-5 y-intercept=2 the equation of the line is

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.