Find the equation of a hyperbola

Find the equation of the hyperbola with foci (0,25) and (0, -25) whose transverse axis has length 14

thanks :)

c² -a²=b²
a= center-vertices, c= center-focii

2a = 14 , a=7

c= 25

plug a and c in, solve for b
since the hyperbola has vertical transverse axis, the form is

y²/a² - x²/b² =1