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Mathematics 7 Online
OpenStudy (chunkymonkay):

will give medal!

OpenStudy (chunkymonkay):

what is the equation of the given line is slope intercept for?

OpenStudy (anonymous):

find slope : \(\Large \frac{ y2 - y1 }{ x2 - x1 }\)

OpenStudy (anonymous):

which u can cnsider y2 = -4 and x2=1 and y1=2 and x1=-1

OpenStudy (anonymous):

@Chunkymonkay

OpenStudy (chunkymonkay):

so it would be -6/-2?

OpenStudy (anonymous):

pay attention,y2-y1=-6 but x2 - x1=2

OpenStudy (anonymous):

so slope of that line = -3

OpenStudy (chunkymonkay):

okay thanks

OpenStudy (anonymous):

and the equation of the line which we have the slope and a point is: \(\Large y = m(x-x \prime )+ y \prime \) \( (x \prime , y \prime) \) is a point wich u have.

OpenStudy (anonymous):

any problem? can u find it?

OpenStudy (chunkymonkay):

so would it be y=3x+1

OpenStudy (anonymous):

slope = -3

OpenStudy (chunkymonkay):

these are the only options I have. A. y=-1/3x-1 B. y=3x-1 C.y=3x+1 D.y=-3x-1

OpenStudy (anonymous):

y=-3x - 1,put \( m=-3 \) and \( x\prime = -1 \) and \( y \prime = 2 \) in that equation.

OpenStudy (anonymous):

please do it yourself and be sure that the answer is \( y=-3x - 1 \).

OpenStudy (chunkymonkay):

ok thanks

OpenStudy (anonymous):

ur welcome ;)

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