Suckless SAT Practice

SAT Practice451c1b50-026a-4bad-96b2-c090526934bf

Practice one SAT question at a time

Questions come from the Bluebook question bank.

Line $k$ is defined by $y = 3 x + 15$ . Line $j$ is perpendicular to line $k$ in the xy-plane. What is the slope of line $j$ ?