Which number completes the square? x2 − 4x +

Step-by-step explanation:

In order to complete the square, we need to half b and then square it. This allows us to find c.

In this case, the coefficient of x is b and the unknown term is c

From this, we can see that b = -4

First, we need to half it

Next we need to square it

This gives us our answer of 4.

y=mx+

the answers are in the images, i received 100% on this assignment. hope this !