Answer: y=3
Subtract the bottom left of the triangle from the number at the top of the triangle. Then that number is multiplied by the number at the bottom right of the triangle.
To solve:
6-5=1
1•3=3
y=3
The mirror is in a shape of a pentagon
For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

Where:
m: It's the slope
b: It is the cut-off point with the y axis
According to the graph, we place two points through which the line passes:

We found the slope:

Substituting we have:

Thus, the equation is of the form:

We substitute one of the points and find the cut-off point:

Finally, the equation is:

ANswer:
