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Mathematics 11 Online
OpenStudy (janettevegaa):

How do i find the x,y, and z intercepts !!??!??!!?!?!??!

OpenStudy (janettevegaa):

someone please help me

OpenStudy (freckles):

x-intercept you let y,z=0 y-intercept you let x,z=0 z-intercept you let z,y=0

OpenStudy (janettevegaa):

okay so sub everything for 0 right , i did that and it says ts wrong ??!!

OpenStudy (freckles):

can i see the question

OpenStudy (freckles):

and your answer

OpenStudy (janettevegaa):

question is 2x-6y-3z=12 and my answer is (6,-2,-4)

OpenStudy (freckles):

x-intercept will be in form (a,0,0) y-intercept will be in the form (0,b,0) z-intercept will be in the form (0,0,c) where a,b,c are some number

OpenStudy (freckles):

so for example to find the x-intercept (a,0,0) means replace y and z with 0 so we have 2x-6(0)-3(0)=12 2x=12 x=6 so the x-intercept is (6,0,0)

OpenStudy (janettevegaa):

okay so i got that, and do i plug 6 into x and like y as 0 and z as z orrrrrrrrrr ?

OpenStudy (freckles):

?

OpenStudy (freckles):

(6,0,0) is the x-intercept this means when y=0 and z=0,x=6

OpenStudy (janettevegaa):

i dont get it ))):

OpenStudy (freckles):

may ask what part

OpenStudy (janettevegaa):

how to find the y and z intercepts

OpenStudy (freckles):

so you didn't understand the example for x-intercept then?

OpenStudy (janettevegaa):

this is the actual question thy gave me Find the x-, y-, and z-intercepts for the following equation. (Enter your answers separated by commas, like this example: -2, 3, 4). 2x – 6y – 3z = 12

OpenStudy (janettevegaa):

i did but i keep getting the same answer , but its wrong

OpenStudy (freckles):

so for example the x-interecpt do they want you to enter the number or the ordered pair?

OpenStudy (freckles):

like you can say the x-intercept is 6 but I prefer the (6,0,0)

OpenStudy (janettevegaa):

i have to find all intercepts and then put them together

OpenStudy (freckles):

so you entered in this exactly: 6,-2,-4

OpenStudy (janettevegaa):

yes i did , with the parenthesis

OpenStudy (freckles):

I don't think you should be parenthesis around it that isn't a 3tuple or whatever it is called those are individual intercepts

OpenStudy (janettevegaa):

LOL im not supposed to put paranethesis HAAA, Thank you so much for helping me

OpenStudy (freckles):

lol congrats

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