Mathematics
21 Online
OpenStudy (pphalke):
help with this one plz i wont ask about these anymore
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (pphalke):
OpenStudy (pphalke):
@Scooby6363 @latinC
OpenStudy (latinc):
start here (-5-(-2)) and (5-(-3))
OpenStudy (pphalke):
so i got -3 and -2 for both
OpenStudy (latinc):
no, -3 is correct for the first one, check the second
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (pphalke):
8 for the second one
OpenStudy (latinc):
yes so your slope m value = -3/8
OpenStudy (latinc):
y = -3/8x +b solve for b
OpenStudy (pphalke):
how do i solve for b again?
OpenStudy (latinc):
in put a point for x and y
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (latinc):
(-3,-2) into y = -3/8x + b
OpenStudy (pphalke):
idk how -3,-2 *y
OpenStudy (latinc):
-2 = -3/8(-3) +b
OpenStudy (pphalke):
i cant do that in my calc its difficult
OpenStudy (latinc):
throw your calculator away lol
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (pphalke):
haha i can never do math without it lol :D
OpenStudy (pphalke):
@ganeshie8
OpenStudy (latinc):
one step at a time, (-3/8)(-3) = (-3*-3)/8 lets start here
OpenStudy (pphalke):
how do i do that part
OpenStudy (latinc):
balance, -2 -(9/8) = (9/8) -(9/8) + b
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (pphalke):
difficult
OpenStudy (latinc):
-2 becomes -16/8
OpenStudy (latinc):
so -16/8 - (9/8) = b
OpenStudy (pphalke):
isnt it -25/8?
OpenStudy (latinc):
yes
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (pphalke):
how do i put that in slope intercept form
OpenStudy (latinc):
y = mx +b, do you want to check your answer
OpenStudy (latinc):
y = -3/8x -25/8 is intercept form
OpenStudy (pphalke):
???
OpenStudy (latinc):
slope intercept form
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (pphalke):
how do i do it in standard form Ax+By=C
OpenStudy (latinc):
y = (-3/8x -25/8)(8) first step
OpenStudy (pphalke):
how do i do that?
OpenStudy (latinc):
multiply the 8 into the equation, since those are fraction just multiple the 8 by the top numbers for now
OpenStudy (pphalke):
i cant do that without a calc and i dont know another way
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (latinc):
k
OpenStudy (latinc):
k for now
OpenStudy (latinc):
you know what would make algebra really easy when it comes to points? having graphing paper
OpenStudy (latinc):
what did you get with your calc
OpenStudy (pphalke):
how do i multiply 8
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (latinc):
-3*8 and -25*8
OpenStudy (latinc):
y = -24/8x-200/8
OpenStudy (latinc):
y = -3x-25 onced the fractions are reduced
OpenStudy (pphalke):
is that standard form ?
OpenStudy (latinc):
no
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (latinc):
Ax+By = C
OpenStudy (latinc):
balance the equation to move the -3x, in other word add 3x to both sides
OpenStudy (pphalke):
?? is it -25-3 like -3x+3X
OpenStudy (latinc):
no , close though. 3x+y = -3x+3x -25
OpenStudy (pphalke):
3x+y=25??
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (latinc):
O, we almost forgot the 8 so ---> 3x+8y = -3x+3x -25 solve this and you'll have standard form
OpenStudy (pphalke):
3x+8y=-25
OpenStudy (latinc):
yes
OpenStudy (latinc):
you can proof the equation by inputting 0 for x and solving for y and you should get b