Which of the following would be a line of reflection that would map ABCD onto itself?

x+y= 4

Step-by-step explanation:

Fro the graph , it can be seen that ABCD is a square.

A square can be reflected onto itself across its diagonals.

So, we need to find the equation of the diagonal AC.

This diagonal passes through the points A(3,1) and C(1,3).

Equation of a line passes through (a,b) and has slope 'm" is given by

(y-b)=m(x-a)

Slope of line AC:   [Slope = ]

Then, Equation of AC:

Hence, x+y =4 be a line of reflection that would map ABCD onto itself.

step-by-step explanation:

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)