Practise test answer help

[dichotomous]

was doing a practise test for review. Could someone please help complete the answers so i may use as a reference when working on my own.

Thanks

1 D
2 A
3 B
4 D
5 C**
6 A
7 B**
8 B**

That's what i got, i'm unsure about 5,7,8​

 

[dichotomous]

anyone?

 

[mmm4444bot]

doing a practise test for review

please help complete the answers

If we complete the practice test for you, then your first statement above is false.

If you would like us to help you review, then you need to first explain what you've thought about or tried thus far on each exercise.

Please check out our FORUM GUIDELINES.

As you have provided no information about your situation or asked any specific questions of your own, I will simply offer these Google search results for assistance on the first exercise.

Cheers :cool:

 

[mmm4444bot]

I am assuming that when he responded he did not see that you were asking for confirmation of some answers.

Assumption correct; the post was edited while I was composing my reply, and I was not notified that the thread had changed until you added your post, Jeff.

I cannot read the test; somebody with better vision will need to take over.

EG: The parameter in exercise 5 looks like t for x and y but something else for z.

 

[HallsofIvy]

5 and 7 are correct. 8 is incorrect. You can check that (1, -3, -3) is not a point of intersection. With x= 2+ 3t, t would have to be -1/3 in order to give x= 1. But with y= -1+ 2t, t= -1/3 gives y= -1- 2/3 which is not -3. (1, -3, -3) is not on the second line.