## lucwex Group Title 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 Group Title

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

2. lucwex Group Title

some what but im not to confident about it

3. calculusfunctions Group Title

Do you know the formula to find slope?

4. lucwex Group Title

y=mx+b?

5. zordoloom Group Title

Non really

6. zordoloom Group Title

its y2-y1 divided by x2-x1

7. ParthKohli Group Title

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 Group Title

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 Group Title

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 Group Title

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

11. ParthKohli Group Title

Check, rather...

12. lucwex Group Title

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

13. calculusfunctions Group Title

-8/14

14. zordoloom Group Title

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

15. zordoloom Group Title

That means its the last one.

16. lucwex Group Title

so they arent parallel

17. lucwex Group Title

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

18. lucwex Group Title

|dw:1351328914190:dw|