The initial point of a-> is (−1,6) , and its terminal point is (−3,−2) .

What is the value of ∥a-> ∥ ?

Enter your answer, as a simplified radical, in the box.

The answer should be 2sqrt17

Note that magnitude (||a||) is just the length of the vector.

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or