How can the statement be written as a conditional statement in if-then form? lines on a coordinate plane are perpendicular if they have opposite reciprocal slopes.
a) if lines on a coordinate plane have opposite reciprocal slopes, then they are perpendicular.
b) if lines are on a coordinate plane, then they are perpendicular.
c) if lines are on a coordinate plane, then they have opposite reciprocal slopes.
d) if lines have opposite reciprocal slopes and are perpendicular, then they are on a coordinate plane.