What is the slope of a line (in general) a)the point on the x-axis where a line crosses it b) the amount the line has risen on the y-axis over the amount it runs to the side on the x-axis c)the point on the y-axis where a line crosses it d) the place where a line stops

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?