Line IJ has an equation of a line y = −3x − 8. Which of the following could be an equation for a line that is parallel to line IJ?

y = 3x + 7
y = 1 over 3x + 7
y = −3x + 7
y = −1 over 3x + 7

Question

Line IJ has an equation of a line y = −3x − 8. Which of the following could be an equation for a line that is parallel to line IJ?

 y = 3x + 7
 y = 1 over 3x + 7
 y = −3x + 7
 y = −1 over 3x + 7

anonymous · Answer

@jigglypuff314

jigglypuff314 · Answer

hey there! :)

Parallel lines have the same slopes
soo first let's figure out what the slope of the given equation is
What is the slope of y = -3x - 8 ?

anonymous · Answer

well iknow the formula alittle i just couldnt remembe how it went

jigglypuff314 · Answer

y = mx + b
where m = slope :)

anonymous · Answer

yea (: so M= 3x and b= 8 right?

jigglypuff314 · Answer

close!
y = -3 x  - 8
      ^^ so slope would be  Negatvie 3  :)

anonymous · Answer

oh ok so then I multiply -3 by -8 and get -24 right (:

jigglypuff314 · Answer

nope :P
you don't have to think that far ^_^

just look for an Option where the slope is also Negative 3

anonymous · Answer

ohh ok lol so it would be C then right ^-^

jigglypuff314 · Answer

that's right! :)

anonymous · Answer

YAY!!! thank you so much (: do u mind helping me with a few more??

jigglypuff314 · Answer

sorry, I've gtg take my driving test >.>

anonymous · Answer

oh ok its ok thank ou for the help ^-^ good luck on your driving test (: