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anonymous
 one year ago
write an equation in the form y=mx+b for the line which contains the point (6,8) and (2,12)
anonymous
 one year ago
write an equation in the form y=mx+b for the line which contains the point (6,8) and (2,12)

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MrNood
 one year ago
Best ResponseYou've already chosen the best response.0do you know what the form of the equation y=mx+b means?

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0so  you are studying straight line equations have you seen the equation y=mx + b before?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes i have but i honestly dont really get it

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0do you know what the slope of a straight line is?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0are you talking bout the y1,y2/x1,x2

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0yes  that is correct (but it is y1y2/x1x2) you can use the 2 points you are given to work out the slope from that equation

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0fill in the numbers  from the points: x1= x2= x1x2= y1= y2= y1y2= y1y2/x1x2 =

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok give me a min im going to do it

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0that is good  correct now in the equation y=mx +b the slope is the value m so you can start to make the equation y= 0.5x +b OK so far?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so should i make 12 or 8 my y intercept

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0so  don't rush ahead... the equation is y=0.5x+b and you know that the point (6,8) is on th eline so you can fill in some numbers: 8 = 0.5(6) +b (that is th esame equation but we pput the values from one of the known points in OK? so now you can work out b from that equation...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok can you tell me how to get b

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0I SHOWED YOU HOW TO PUT TH EVALUES OF ONE OF TH EPOINTS INTO THE EQUATION (oops) to give you this: 8 = 0.5(6) +b so solve that to get a number for b

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0what is 0.5(6) i.e. 0.5 times 6??

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0so the equation I wrote is 8 = 3 +b so what is b?

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0well done  that is correct so in the general equation y=mx + b you worked out that m = 0.5 you worked out that b = 11 so the equation is y=0.5x 11 you can check that by looking at the point (2,12) is the equation true for that point?
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