## anonymous one year ago 8. The curve y^2=12x intersects the line 3y=4x+6 at two points. Find the distance between the two points. I got the wrong answer and I don't know why! Please help!

1. anonymous

2. Mehek14

I just graphed both lines and they intersect at (0.75, 3) and (3,6)

3. Mehek14
4. anonymous

Ok, I assumed that I wasn't allowed to graph anything but is that wrong then?

5. Mehek14

well you got 2 different points

6. Mehek14

$$\large{\bf{\sqrt{(3-0.75)^2+(6-3)^2}}}$$

7. anonymous

Yeah but if I could just graph to get the two points it would probably be easier since I went so wrong with my calculations. So what I mean is, if I graphed to get those two points that would be allowed?

8. Mehek14

does it say in your instructions if you can or not?

9. anonymous

not specifically. in the examples they give you before the questions, some of them say 'first draw a graph' but then they calculate it anyway

10. Mehek14

so yea I got the graph for you

11. anonymous

Ok, that will be easier then. I just used the points you got and tried getting the length but I got the wrong answer? I got -3.94 instead of the correct answer which is 3.75

12. anonymous

Oh nevermind I think I see where I went wrong, let me try again quick

13. Mehek14

how'd you get -3.94?

14. anonymous

Oh apparently I changed one of the signs by accident. Whoops. I am getting the right thing now though. Sorry for all the trouble and thanks very much for your help!

15. Mehek14

yw ^_^

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