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Mathematics 20 Online
OpenStudy (anonymous):

Help :c

OpenStudy (anonymous):

OpenStudy (anonymous):

@Michele_Laino

OpenStudy (zenmo):

you can do this by visually looking at the graph

OpenStudy (michele_laino):

hint: such line passes at point \((1,-2)\)

OpenStudy (michele_laino):

so, such coordinates have to check the requested equation. For example, if I replace \(x=1\) into the first equation, I get: \(f(1)=(-1/3) \cdot 1+1=2/3\) which is different from \(-2\)

OpenStudy (michele_laino):

so, the first option, is a wrong option

OpenStudy (anonymous):

Oh...

OpenStudy (michele_laino):

so, what is the right option?

OpenStudy (anonymous):

I am thinking :3

OpenStudy (anonymous):

The third option..?

OpenStudy (anonymous):

@Michele_Laino

OpenStudy (michele_laino):

third option is a wrong option, since if I replace x=1, I get: f(1)=3 *1+1=3+1=4, which is different from -2

OpenStudy (anonymous):

Ohhhhh

OpenStudy (anonymous):

Makes sense. Then I will have to go with the second one know because I am pretty sure the final one is incorrect.

OpenStudy (michele_laino):

I think that the last option is the correct option

OpenStudy (anonymous):

Ihml xD

OpenStudy (michele_laino):

hint: if I replace x=1, I get: \(f(1)=-3x+1=-3 \cdot (1)+1=-3+1=-2\)

OpenStudy (anonymous):

oh.. :p

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