Is it a function circle the correct answer

If jm equals 5x -8 and lm equals 2x -6 which expression represents jl

Which of the following statements is not true? a. parallel lines are lines in the same plane that never intersect. b. congruent figures have the same shape and same size angles and sides. c. similar figures must have the same shape and the same size. d. a rotation is when you turn a figure around a certain point.

How is this equation completed? i cannot find any examples in the book.