Question

Can anyone PLEASE help me with Lesson 10: Parallel and Perpendicular Lines.
Geometry A Unit 3: Parallel and Perpendicular Lines. Will post attachments in comments.

Answer 1

Are you part of keystone?

Answer 2

No. Idk what that is.lol

Answer 3

Lol alright sorry, thought we had the same course.

Answer 4

That's okay, thank you!

Answer 5

Actually, I know a good website that you can actually graph these lines on and compare, might take a few minutes for each one but it helps a lot. Wanna try?

Answer 6

Sure!

Answer 7

http://www.mathsisfun.com/data/grapher-equation.html

Graph the equation in the question in the first bar, then try out the answers in the second bar.

Answer 8

Honestly not sure about the second question ;-; But it might help the others

Answer 9

Any good?o-o

Answer 10

I got one answer from it! But now my computer is being stupid :I

Answer 11

Awww Dx

Answer 12

I'd help if I remembered how to put points into equations...like the third question

Answer 13

For the fourth question, the answer is y= -1/2x - 5

Answer 14

Thank you! You've been a huge help!(:

Answer 15

No problem(:

Answer 16

Assuming you know the standard y = mx + b slope formula,
1) Solve into the y = mx + b formula. Any line with the same m, or slope, as the formula you just made is the right answer.
2) The total interior angle of a triangle is 180. With this, you can simply add angles B and C and subtract the total from 180.
3) Once again, solve into y = mx + b form. Find the slope (y2 - y1) / (x2 - x1) of the points given. Then, compare the m values. If they are identical, then they are parallel.
4) A perpendicular slope is always the negative reciprocal (that is, flip the fraction and make it negative or positive). Then, revert it to a clean slate as the standard formula y = mx + b (where m is the new perpendicular slope).
Plug in the values given and solve for b. This will be your new slope, which should be one of the examples.

If you need clarification, I'll specify specific ones.

Answer 17

sorry, which one do you currently need help with?

Answer 18

The whole thing! lol. I have been so stuck on everything. There is 24 questions :(

Answer 19

I literally did this test yesterday I wish I had the answers

Answer 20

for number 7 use the 2 angles provided to find the other angle on the inside of that triangle, they will all add to 180. once you have that angle it + angle 1 will add to 180 and you have your answer

Answer 21

@Taylove4l you can always go back and look at the test! lol. and thank you @Jusaquikie !

Answer 22

@skye12 she hasn't graded it yet:(

Answer 23

Boo! lol. I know my teacher for this class takes forever to grade my stuff! Do you mind messaging it to me when she does?