SS below

Question

SS below

hhanan · Answer

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Extrinix · Answer

Well, to find the $m$ part of $y=mx+b$, do $\dfrac{rise}{run}$,
the $m$ here would be $\dfrac{3}{1}$, or just 3. And both of these are opposites, so $m$ is $\color{lime}{3}$ and $\color{cyan}{-3}$.

now we have to find $b$, to find b look at the graph and locate the points at which the lines cross the y axis, this would be $\color{lightgreen}{6}$ and $\color{lightblue}{-6}$

now plug in the choices into 2 $y=mx+b$ equations,

$y=\color{lime}{3}x+\color{lightgreen}{6}$
$y=\color{cyan}{-3}x+\color{lightblue}{-6}$

and there's your answer.

JamesTDG · Answer

I generally just plug it into my graphing calculator

Extrinix · Answer

Same, just a more thorough explanation for people who don't have graphing calculators.

hhanan · Answer

thank you

Extrinix · Answer

You're welcome.

JamesTDG · Answer

@extrinix wrote:

Same, just a more thorough explanation for people who don't have graphing calculators.

understandable. (though desmos is always available...)

Extrinix · Answer

@jamestdg wrote:

@extrinix wrote:

Same, just a more thorough explanation for people who don't have graphing calculators.

understandable. (though desmos is always available...)

that is very true, Desmos is a good website for graphing.

JamesTDG · Answer

@extrinix wrote:

@jamestdg wrote:

@extrinix wrote:

Same, just a more thorough explanation for people who don't have graphing calculators.

understandable. (though desmos is always available...)

that is very true, Desmos is a good website for graphing.

As long as you use the official site, the desmos GC widgets on school sites suck

Extrinix · Answer

Yea.

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