160-1
157+1
158X1
158/1
2x79
Answer:
113
i did it in the caculater and this is what showed.
First you gotta find the slope

Then you can put it into point slope form using either of the points
To complete the square you need to halve the linear coefficient -4/2, square it, 4, and add that value, giving you:
x^2-4x+4 and that is a perfect square equal to:
(x-2)^2