## lucwex Is the line through points P(–7, 2) and Q(7, –6) parallel to the line through points R(–1, –5) and S(–3, –1)? Explain. (1 point) No; one line has zero slope, the other has no slope. Yes; the lines are both vertical. Yes; the lines have equal slopes. No; the lines have unequal slopes. one year ago one year ago

1. zordoloom

Do you know how to find the slope of 2 points?

2. lucwex

some what but im not to confident about it

3. calculusfunctions

Do you know the formula to find slope?

4. lucwex

y=mx+b?

5. zordoloom

Non really

6. zordoloom

its y2-y1 divided by x2-x1

7. ParthKohli

Hmm - if you are given two points $$\rm (x_1 , y_1), (x_2, y_2)$$ then the slope is$\rm Slope = {y_2 - y_1 \over x_2 - x_1}$

8. calculusfunctions

No, @lucwex that's the slope-intercept form of the equation of an oblique line. Tho formula for slope is what @ParthKohli said.

9. lucwex

alright cool ill give that a go real quick and then get a little more help from there if thats cool with you

10. ParthKohli

When you're done, see if the slopes are same.

11. ParthKohli

Check, rather...

12. lucwex

i got 8/14 for one of them and -4/2?

13. calculusfunctions

-8/14

14. zordoloom

Right, Are they the same? No, So you have two different slopes.

15. zordoloom

That means its the last one.

16. lucwex

so they arent parallel

17. lucwex

cool beans thanks guys! i couldnt have done it without you

18. lucwex

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