{{ item.displayTitle }}

No history yet!

Student

Teacher

{{ item.displayTitle }}

{{ item.subject.displayTitle }}

{{ searchError }}

{{ courseTrack.displayTitle }} {{ statistics.percent }}% Sign in to view progress

{{ printedBook.courseTrack.name }} {{ printedBook.name }} Parallel lines have the same slope which means that the coefficient in front of $x$, which is their slope, is the same. We can start by simplifying the fractions. Both $2018 $ and $42 $ can be simplified by dividing by $2.$ $4/22/2 =21 and20/218/2 =109 $ In order to more easily compare with the other equations' slopes, write the fractions as a decimal number. $109 =0.9,43 =0.75and21 =0.5$ Write out all the equations with their $m$-values as decimals. $y_{1}=0.5x+50y_{2}=0.9x−1y_{3}=0.75x+2$ $y_{4}=0.9x−11y_{5}=0.75x+11y_{6}=0.5x+700$ Now, we can see which lines have the same slopes. $ y_{1}andy_{6}y_{2}andy_{4}y_{3}andy_{5} $