What is the slope of line b? (photo attached)

(valid answers only, waste my time and i'll waste yours and report you. take someone else's opportunity to get points and my time in getting and you'll be reported. only answer if you know the answer.)

(This will only make sense if u read slow and go with me) Ok so the way I was taught is u use rise over run in a fraction so it would be rise on top and rise on the bottom. Write that on the side of ur paper. Then u fill in the numbers. U go from the point closest on the left and u see how many squares u go up to get to the same hight as the second point. In this case u had to rise 3, then u go from that point and see how many squares u run to the right. In this case 6, so now if u filled in ur fraction right ur fraction that u wrote next to rise/run should be 3 over 6. Then u simplify and u get 1/2. Now ur done. But here's a trick, when u are doing the rise, but u realized that the second point is below the first, u do the same thing but for the rise think of it as sink. So it would be sink over run and when u put it into ur fraction it would be the same but just a negative. I hope this isn't too confusing, if u have any questions just ask me! <3

B. because the 7 represents "seven times", x represents "a number", 12 represents "plus twelve", and -4 represents "minus four"