If i have the two points (-9,4) and (-9,8) and my slope is 4/0, what is my y=mx+b equation and how do i find b?

Me. i can't figure out this question. give an explanation too. .

The probability that a student graduating from suburban state university has student loans to pay off after graduation is .60. if two students are randomly selected from this university, what is the probability that neither of them has student loans to pay off after graduation?

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0