x-intercept 2, y-intercept 3/5
the slope-intercept form for the line is ??? plz
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OpenStudy (lgbasallote):
are you familiar with the intercept form\[\frac xa + \frac yb = 1\]
where:
a = x-intercept
b = y-intercept
OpenStudy (bobdole):
sort of
OpenStudy (lgbasallote):
good. so try substituting. what do you get?
OpenStudy (bobdole):
would it be like y=m2+3/5?
OpenStudy (lgbasallote):
m2?
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OpenStudy (bobdole):
y =m(x)+b is formula??
OpenStudy (bobdole):
this is entire question
OpenStudy (bobdole):
find the slope-intercept form for the line satisfying the following conditions.
x-intercept 2, y-intercept 3/5
the slope-intercept form for the line is ??? plz
OpenStudy (lgbasallote):
it will look like that yes
OpenStudy (lgbasallote):
y = mx + b
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OpenStudy (bobdole):
where would we put the 3/5 would it be x or y
?
OpenStudy (lgbasallote):
b
OpenStudy (bobdole):
y=2+3/5?
OpenStudy (lgbasallote):
no
OpenStudy (lgbasallote):
like i said follow what i say first. you'll get there
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OpenStudy (bobdole):
y=2x=3/5
OpenStudy (lgbasallote):
substitute 2 and 3/5 into \[\frac xa + \frac yb = 1\]
OpenStudy (bobdole):
2/1 + 3/5
OpenStudy (lgbasallote):
what?
OpenStudy (bobdole):
is that how i would set up the problem?
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OpenStudy (bobdole):
not really grasping how to start it
OpenStudy (lgbasallote):
follow what i say....
OpenStudy (bobdole):
k
OpenStudy (lgbasallote):
substitute 2 and 3/5 into \[\frac xa + \frac yb = 1\]
OpenStudy (bobdole):
where do we get a and b?
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OpenStudy (lgbasallote):
a = x-intercept
b = y-intercept
OpenStudy (bobdole):
but y would be 3/5
and what would be the bottom number for 2 also?
OpenStudy (lgbasallote):
huh? a is the x-intercept and b is the y-intercept. so what are the x and y-intercepts here?
OpenStudy (bobdole):
x= 2 and y would be 3/5 so would it be 2/1 +3/5
OpenStudy (lgbasallote):
x is not 2 and y is not 3/5
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OpenStudy (lgbasallote):
substitute 2 into a and substitute 3/5 into b
OpenStudy (bobdole):
x/2 + y over 3/5
OpenStudy (lgbasallote):
where did = 1 go?
OpenStudy (bobdole):
so 2/1x and 3/5 y
OpenStudy (lgbasallote):
no...
x/2 + y/3/5 = 1
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OpenStudy (bobdole):
i am so lost so how would the form look like
or is that the form
OpenStudy (lgbasallote):
just follow what im saying and stop thinking about the answer
OpenStudy (lgbasallote):
do you get what i did?
OpenStudy (bobdole):
ok
OpenStudy (bobdole):
yes
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OpenStudy (lgbasallote):
now multiply 3/5 to all the terms...what do you get?
OpenStudy (bobdole):
1 for 2/1times 3/5 and 9/5 for 3/5 times 3/5
OpenStudy (lgbasallote):
....what are you doing? you multiply 3/5 to
\[\huge \frac x2 + \frac y{\frac 35} = 1\]
OpenStudy (anonymous):
let me help
x-intercept is 2 so we have the point (2,0)
y- intercept is 3/5 so we have (0,3/5)
y=mx+b
b is y intercept, so b = 3/5
y=mx+3/5
now sub (2,0)
0=m(2)+3/5
2m=-3/5
m= (-3/5)*(1/2)
m=-3/10
so what is your equations
OpenStudy (bobdole):
y=3/10x +3/5
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OpenStudy (anonymous):
im sure bobdole wasnt taught
\[\frac{ x }{ a }+\frac{ y }{ b } method\]
OpenStudy (bobdole):
not even a little
OpenStudy (anonymous):
you should have -3/10
OpenStudy (anonymous):
another way is to look at graph
do you have graph paper?
OpenStudy (bobdole):
y=-3/10x-3/5
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OpenStudy (bobdole):
do not have graph paper
OpenStudy (anonymous):
no y=-3/10 x +3/5
OpenStudy (bobdole):
oh ok thanx you so very very much
OpenStudy (bobdole):
dont the bottom have to be common denominators?
OpenStudy (anonymous):
no because you are wanting the slope intercept form :-)