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Mathematics 68 Online
OpenStudy (anonymous):

Parallel and perpendicular lines help please! 10 questions fan + medal 1. Construct the line perpendicular to TU at point V. 2. Construct the line that is perpendicular to the given line through the given point. 3. Plans for a stadium are drawn on a coordinate grid. One wall lies on the line y=2x+3. A perpendicular wall passes through the point (4,-7) write the equation of the line that contains the new wall. 4. What is the graph of 5x -3y = 15. 5. Which lines are parallel if m<4 = m<5? justify your answer. 6. Write the equation for horizontal line that contains point G(-8,8).

OpenStudy (anonymous):

possible answers on #2 I'd like to understand

OpenStudy (nikato):

1 is not correct

OpenStudy (anonymous):

the question on #5 If you guys don't have time to explain it's fine if you already know the answers. I just want to understand since it's kind of a course without much help from teachers.

OpenStudy (nikato):

Should be B

OpenStudy (nikato):

Well it's actually hard for me to explain. Maybe try looking on YouTube or khan academy about constructing perpendicular lines

OpenStudy (anonymous):

@nikato what about #2, #5 and Write and equation in point-slope form of the line through point J(4,1) with slope -4. I watched a few videos but it's confusing

OpenStudy (fibonaccichick666):

https://www.khanacademy.org/math/geometry/geometric-constructions I thouroughly recommend watching these videos. They will really help.

OpenStudy (nikato):

2. Is hard to explain. Try watching ^that video. And for 5. Hint. Which two lines if parallel would make those two angles congruent by alternate interior angles

OpenStudy (fibonaccichick666):

2. Hint: What do you know about isosceles triangles?

OpenStudy (anonymous):

@nikato R an S? and @FibonacciChick666 Nothing really but my guess on the answers is A or B

OpenStudy (fibonaccichick666):

One of them is correct

OpenStudy (nikato):

And yes. 5. Is right.r and s would be parallel

OpenStudy (anonymous):

@FibonacciChick666 Well i said A because it looks right but i'm not sure

OpenStudy (fibonaccichick666):

And look at if you construct the altitude of an isoceles

OpenStudy (fibonaccichick666):

if you construct two isoceles in this form, can you figure out why?|dw:1394937521724:dw|

OpenStudy (anonymous):

because they are perpendicular?

OpenStudy (fibonaccichick666):

No this would be the first step of the construction

OpenStudy (fibonaccichick666):

|dw:1394937708562:dw| The perpendictlar will pass through pt A, but why? Also did you watch the video?

OpenStudy (anonymous):

I tried looking for the video on the link i saw a few but i didn't see the one you were referring to. And on this Write and equation in point-slope form of the line through point J(4,1) with slope -4. would this be right. y-1=-4(x-4)

OpenStudy (fibonaccichick666):

yup that is correct

OpenStudy (fibonaccichick666):

and let me find it

OpenStudy (fibonaccichick666):

That will show you exactly how

OpenStudy (anonymous):

So it's b?

OpenStudy (anonymous):

@FibonacciChick666 what about #1 a. an angle congruent to a given angle. (my choice) b. the bisector of an angle. c. the bisector of a line segment d. a perpendicular to a given line from a point on the line. #2 a. a perpendicular to a given line from a point on the line b. a line segment congruent to a given line segment c. the perpendicular to a given line from a point not on the line (my choice) d. the perpendicular bisector of a line segment

OpenStudy (fibonaccichick666):

sorry but i'm going to bed, and I don't like any of the provided answers

OpenStudy (anonymous):

@nikato

OpenStudy (nikato):

Sorry. I'm not quite sure but 2. And I think that 1 is right

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