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Mathematics 9 Online
OpenStudy (anonymous):

Write an equation of the like that contains the median of triangle RST from S to RT Will fan/medal for help. (picture in comments)

OpenStudy (anonymous):

OpenStudy (anonymous):

@superhelp101

OpenStudy (anonymous):

Here are the answer choices: a. x+2y=-10 b. x+2y=6 c. x+2y=8 d. x+2y=10

OpenStudy (superhelp101):

equation has solutions -4,7 and 2,4, so the answer is D

OpenStudy (anonymous):

Okay, how did you do that?

OpenStudy (superhelp101):

because the ) the middle point of line R,T is 2,4

OpenStudy (anonymous):

Ohhh okay. Now how would i write the equation of the line that contains the altitude of triangle RST from T to RS? Same picture.

OpenStudy (anonymous):

Answer choices: a. 2x-3y=-13 b. 3x-2y=-2 c. 2x+3y= 29 d. 3x+2y= 26

OpenStudy (superhelp101):

2x - 3y = -13 cause the line RS has gradient -1.5

OpenStudy (anonymous):

Can you help me with like 3 more of these?

OpenStudy (superhelp101):

go ahead

OpenStudy (anonymous):

Okay. Same picture. If a translation is done on triangle RST such that point S is moved to coordinates of point R, then the new coordinates for point R will be which of the following? a. (-4,8) b. (-6,5) c. (-4, -7) d. (7,4)

OpenStudy (superhelp101):

c is the answer all you have to do is translate point S

OpenStudy (anonymous):

Second one (Same picture): If triangle RST is reflected through the x-axis, which of the following will be the new coordinates for point T? a. (-4,7) b. (4,-7) c. (-4, -7) d. (7, 4)

OpenStudy (anonymous):

I gave the incorrect answer choices for the first one. They were really: a. (-4, 8) b. (-6,5) c. (4, -5) d. (-4, -6)

OpenStudy (superhelp101):

the incorrect answer choices is (4, -5) If triangle RST is reflected through the x-axis, which of the following will be the new coordinates for point T? a. (-4,7) b. (4,-7) answer c. (-4, -7) d. (7, 4)

OpenStudy (anonymous):

Okay, last one Write the equation for line AD. a. 2x-3y=7 b. x+4y=-2 c. 4x+y=7 d. 3x-2y+10

OpenStudy (superhelp101):

x+4y=-2

OpenStudy (anonymous):

Thank you!

OpenStudy (superhelp101):

welc

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