Help pls this math problem is harm for me

I’m pretty sure that it’s j(x) = -2x +4
Because if you divide -2 by 4 you get -2 and your x will be left by it’s self and be a 1 so it would be(1,-2) I’m not sure if it’s right but I hope this was helpful

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.