Match each square root on the left with its value on the right

Hi my sisters and brothers can tell me the answer because i don’t understand the question

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual 

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =