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Mathematics 22 Online
OpenStudy (anonymous):

HELP MEH PLS !!!!!!!!!! *~*

OpenStudy (anonymous):

Referring to the figure, write an equation of the line shown in the graph. Use the slope and y-intercept format: y = mx + b

OpenStudy (tylerd):

so whats the figure look like

OpenStudy (tylerd):

or can you give me 2 points that the line touches?

OpenStudy (tylerd):

in (x,y) format

OpenStudy (anonymous):

OpenStudy (tylerd):

ok so the rise is 3, the run is 2 so M (slope) = 3/2

OpenStudy (tylerd):

it touches point (4,4) (x,y) so 4=3/2(4)+b

OpenStudy (tylerd):

so b is -2

OpenStudy (tylerd):

if we set x=4 and y=4 in y=mx+b we get 4=m4+b and we know m is the slope and the slope is the rise/run

OpenStudy (tylerd):

so finally the equation is y=3/2x-2

OpenStudy (anonymous):

thx Tyler!!!!!!!! :) i wish i could give u more medals lol

OpenStudy (tylerd):

\[y=\frac{ 3 }{ 2 }x-2\]

OpenStudy (tylerd):

ok no problem good luck

OpenStudy (anonymous):

can u help meh with more problems pls *~*

OpenStudy (anonymous):

@TylerD can u help meh with some more ques pls *~*

OpenStudy (tylerd):

sure

OpenStudy (anonymous):

Write an equation of the line that is parallel to the given line y = x + 3 and the given point (5,0).

OpenStudy (anonymous):

is it Y=X-5

OpenStudy (tylerd):

they are paralell so the slope is the same

OpenStudy (tylerd):

0=5+b yes your right

OpenStudy (anonymous):

ok next ques Write an equation of the line that is parallel to the given line y = 2x + 3 and the given point (-4,1).

OpenStudy (tylerd):

1=-8+b

OpenStudy (tylerd):

y=2x+9

OpenStudy (anonymous):

sorry my internet is actin up

OpenStudy (anonymous):

but here it is Write an equation in slope-intercept form of the line that passes through the points (-4,2) and (1,-1).

OpenStudy (anonymous):

@TylerD can u help with tha ques

OpenStudy (tylerd):

first we need to find the rise/run which is y2-y1/x2-x1

OpenStudy (tylerd):

\[\frac{ -1-2 }{ 1-(-4) }=\frac{ -3 }{ 5 }\]

OpenStudy (tylerd):

would be the slope (M)

OpenStudy (tylerd):

\[2=(\frac{ -3 }{ 5 })(-4)+b\] \[2=2.4+b\]

OpenStudy (tylerd):

b=-0.4 so lets test this on the other equation -1=-3/5-0.4 and it works out

OpenStudy (tylerd):

\[y=\frac{ -3 }{ 5 }x-0.4\]

OpenStudy (anonymous):

so does m=1 im sorry @TylerD my internet act up n i went 2 get some lunch pls come back *~*

OpenStudy (anonymous):

if i don't answer fast know that my internet is actin up ok @TylerD

OpenStudy (tylerd):

\[m=\frac{ -3 }{ 5 }\]

OpenStudy (anonymous):

thx im here u just cant c meh

OpenStudy (anonymous):

@TylerD Write an equation in slope-intercept form of the line that passes through the points (-2,-1) and (3,5).

OpenStudy (anonymous):

@TylerD pls help meh with my questions pls i need 2 finish this test *~*

OpenStudy (anonymous):

can some 1 help meh with is ques pls *~*

OpenStudy (tylerd):

start a new question and close this one

OpenStudy (tylerd):

ill help

OpenStudy (anonymous):

ok ill do that

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