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Write an equation in pointslope form of the line through the given points. Then write the equation in slopeintercept form.
#11. (4,0), (2,1)
#12. (3,2), (5,3)
#13. (5,1), (3,4)
Thats all they give you.
And YES I do know the Formulas:
Pointslope: yy1=m(xx1)
Slopeintercept: y=mx+b
Slope: m=y2y1/x2x1
 one year ago
 one year ago
Write an equation in pointslope form of the line through the given points. Then write the equation in slopeintercept form. #11. (4,0), (2,1) #12. (3,2), (5,3) #13. (5,1), (3,4) Thats all they give you. And YES I do know the Formulas: Pointslope: yy1=m(xx1) Slopeintercept: y=mx+b Slope: m=y2y1/x2x1
 one year ago
 one year ago

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chihiroasleafBest ResponseYou've already chosen the best response.0
first.., find the slope using the third formula that you write.., then use pointslope formula to find the equation..
 one year ago

Butterfly16Best ResponseYou've already chosen the best response.0
m=y2y1/x2x1 (4, 0) (2, 1) m=10/24 m=1/6 m=y2y1/x2x1 (3, 2), (5, 3) m=3(2)/5(3) m=5/8 m=y2y1/x2x1 (5, 1) (3, 4) m=41/3(5) m=3/8
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
@Butterfly16 Thats what I've done before, but then people come along, and tell me I'm wrong! ):
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
And why are you finding the slope 3 times?
 one year ago

chihiroasleafBest ResponseYou've already chosen the best response.0
because you have three questions and each question have equation... :)
 one year ago

Butterfly16Best ResponseYou've already chosen the best response.0
yy1=m(xx1) (4,0), (2,1) y0=(1/6)(x4) y0= 0.16x+0.7 y=0.16x+0.7 Yeah, I just finding the slope for all of them. :o)
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
Im so freaking confused.
 one year ago

chihiroasleafBest ResponseYou've already chosen the best response.0
now.., using the similar way.., you can solve questions #12 and #13 can you? :)
 one year ago

Butterfly16Best ResponseYou've already chosen the best response.0
y1 and x1 just stand for the points. So (4, 0) is the point, so y1 is 0 and x1 is 4. That would the equation for the pointslope form for that set of points.
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
but you have to write it in pointslope form?!
 one year ago

Butterfly16Best ResponseYou've already chosen the best response.0
Then, I guess you can just plug in the numbers into the pointslope form so it'd just be: y0=(1/6)(x4)
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
but don't you have to do 2 equations because of (4,0) and (2,1)
 one year ago

chihiroasleafBest ResponseYou've already chosen the best response.0
@Butterfly16 has write it in slopeintercept form slopeintercept form is y = mx+ c , No.., points (4,0) and (2,1) are on the same line.., so just choose one of them..
 one year ago

Butterfly16Best ResponseYou've already chosen the best response.0
Yip, the line would look like that. :o)
 one year ago

chihiroasleafBest ResponseYou've already chosen the best response.0
yup.., it's for the second line... :)
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
yy1=m(xx1) y2=1/2(x3) help
 one year ago

Butterfly16Best ResponseYou've already chosen the best response.0
The points for number 12?
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
#12. i got that far but I'm stuck now.
 one year ago

Butterfly16Best ResponseYou've already chosen the best response.0
yy1=m(xx1) (3, 2) (5, 3) y(2)=(5/8)(x(3)) y+2=0.625x1.875 y=0.625x3.875
 one year ago

Butterfly16Best ResponseYou've already chosen the best response.0
Yup, so for #12 it'd be y=0.625x3.875
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
but thats y=mxb it should be y=mx+b though right?
 one year ago

erdog82Best ResponseYou've already chosen the best response.1
why are you guys using decimals? fractions are easier
 one year ago

erdog82Best ResponseYou've already chosen the best response.1
no, it depends, if you are adding a negative, its the same as subtracting, and its okay @MaeganR
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
Can someone show mw how you get #13 now?
 one year ago

erdog82Best ResponseYou've already chosen the best response.1
41/ 35 (or 3+5) so what is that?
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
And @erdog82 what are you doing?
 one year ago

erdog82Best ResponseYou've already chosen the best response.1
how do you get from y1= 3/8 x5 to y=mx +b form?
 one year ago

erdog82Best ResponseYou've already chosen the best response.1
its as simple as adding 1 number
 one year ago

MaeganRBest ResponseYou've already chosen the best response.0
idk. I was trying to do it like @Butterfly16 was doing it.
 one year ago

erdog82Best ResponseYou've already chosen the best response.1
oh and its y1=3/8 x+5
 one year ago

erdog82Best ResponseYou've already chosen the best response.1
so you add 1 to 5 and you get..
 one year ago

erdog82Best ResponseYou've already chosen the best response.1
wasn't that easier than you thought?
 one year ago

erdog82Best ResponseYou've already chosen the best response.1
Well, it seemed like the other people were kinda confusing..
 one year ago
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