If you divide negative by positive it will be negative.
If you divide positive by negative it will be negative.
If you divide 2 negatives you get a positive.
I hope this helps :)
Start on -7 since it is the y intercept(b). 4/1 is the slope. So from seven you would go up 4 right 1.
Like terms are terms whose variables are the same. In this case, 7 and 2 have no coefficients therefore are like terms. For example, 7x and 2x would both be like terms because they have the same coefficient which is x.
The last pair.
Because 2*4/3*4=8/12