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Mathematics 7 Online
OpenStudy (anonymous):

Write the equation of the line given by the following graph in standard form.

OpenStudy (anonymous):

OpenStudy (anonymous):

Take the first equation and arrange it in standard form then tell me the answer..

OpenStudy (anonymous):

3x – y = –3 standard form : ax + by = c isnt it in standard form?

OpenStudy (anonymous):

can you turn it into y=mx+c form?

OpenStudy (anonymous):

yes. -y = 3x + 3

OpenStudy (anonymous):

wrong.one little mistake..

OpenStudy (anonymous):

whats that?

OpenStudy (anonymous):

it will be y=3x+3

OpenStudy (anonymous):

do you get it?

OpenStudy (anonymous):

yes, took me a while but i understand. By changing the firstt equation into standard form, do that make it the answer? or should i change them all?

OpenStudy (anonymous):

Let first draw the conclusion for the first one.what is the y-intercept of the first equation?

OpenStudy (anonymous):

-4

OpenStudy (anonymous):

no 1

OpenStudy (anonymous):

No. c in the equation is the y-intercept.In y=3x+3,it will be +3.

OpenStudy (anonymous):

oh, ok

OpenStudy (anonymous):

is that true for graph?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

good.so first is wrong.Lets proceed to the second one.What do yo think about it?

OpenStudy (anonymous):

the y intercept is negative 3 and that is true for the graph

OpenStudy (anonymous):

good.so that will be the answer

OpenStudy (anonymous):

wait... 3x – y = 3 ?

OpenStudy (anonymous):

yes.

OpenStudy (anonymous):

But there is a problem in options.option 2 and 3 are same.

OpenStudy (anonymous):

what does that mean?

OpenStudy (anonymous):

it means that you can write y=3x-3(answer) in both ways.

OpenStudy (anonymous):

which means both are correct...

OpenStudy (anonymous):

i see. thank you very much!

OpenStudy (anonymous):

No problem..

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