I need help with 5 and 6 please what is M and B?

Step-by-step explanation:

5)

y= 3x - 5  m = 3   b = -5

y = -x -1    m = -1   b = -1

6)

y= x+3   m = 1    b = 3

y= -2x -3   m = -2  b = -3

5.

y = 3x - 5  m = 3   b = -5

y = -x -1    m = -1  b = -1

6.

y = x+3   m = 1    b = 3

y = -2x -3   m = -2  b = -3

-2

7 - 9 = -2

reversed:

-2 + 9 = 7