Want Algebra one support? YourTeacher.com – www.yourteacher.com – offers 1000+ online math lessons featuring a individual math teacher inside each and every lesson! In this lesson, students find out to write the equation of a line given (a) a point on the line and (b) the equation of a line that is parallel or perpendicular to the line. College students find out that parallel lines have the exact same slope, and perpendicular lines have negative reciprocal slopes. So the very first step in the troubles in this lesson is to convert the offered equation to slope-intercept type and use its slope or the negative reciprocal of its slope along with the given point to write the equation of the line.
Video Rating: 4 / five
@multiblade77 wouldnt u subtract 12 from both sides since the 12 is positive.
D: so THATS how you do the equation. i did the negative part but not the reciprical part cuz i forgot…-.- probably didnt do so hot on my algebra review quiz.
i think we know where the button is
youtube explains better than my teacher
is this for highschool??? i can’t even understand what he mean i just know the reciprocal… -grade 6
This teacher is awsome !!! i WISH HE WAS MY TEACHER
need to go in super detail as if we don’t already know the formula ;D thanks
I got the same thing you did. I liked all of his videos until this one.
@nubsfrlif
Recall that (x,y)=(-3,6) on the blackboard top left hand corner.. and 7 and 2 are from the slope
7*(-3)-2*(6)=-33
-21-12=-33
-21+-12=-33
i got 7/2x+33/2x = y
alright guys it makes perfect sense. we have y-6 = 7/2x +21/2 right? ok so now we multiply all sides by 2 to get 2y-12 = 7x +21. Then we add 12 to both sides to get 2y = 7x + 33, next we put in slope intercept form by subtracting 33 from both sides to get -33 + 2y = 7x, finally we subtract 2y from both sides to get the final answer of -33 = 7x -2y!!
I understood everything up until 0:17
@nubsfrlif he just didnt put it in mx+b form. the mx+b answer is
y=7/2x +33/2
How did he get -33?
Just when i thought i was getting this
Smh
Why can’t I have a teacher like you when I was in school? Thanks.
man you really helped me thanks
dude your a great teacher, and you just get everything across extremely well, but spice it up a bit! maybe a smile here and there, just make it a little less boring.
lol ur an algebra wiz dude
@YoChr1s09 lol yeah when he did that i couldnt stop laughing for like 5 min … good thing i paused it.
when u multiply everything times two you have to multiply the 6 also which makes it -12 and -12 plus –21 is -33
yah i understood until the -33 darn it but i love this it really helps me alot in math thank you guys
thank you for telling me where the PAUSE button was teacher!!!
Like satan said
-ALGEBRA YOU CAN SUCK MY BALLS-
yep
@Megei i learned it as multiply 7/2(-3) then add the 10.5 with the 6 which gave me 16.5 ……i dont think we ever changed the sign -7/2 in the first place…so idk even why he did that…..i wonder who is right and who is wrong……i do think that they should have put HOW he got -33 though at the end for people who r lost
thanxs this helped me a lot