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@dan815 he's best in these so i won't take his place.
First off you need to find the x and y coordinates
okay so, first when x=0 what is y
y=-2x+490 when x=0 the equation becomes y=-2*(0) + 490 =490 so we have this point (0,490) graph this first
now im getting it!
y=-2x+490 this line is given in slope intercept form y=mx+b we saw how b or 490 was the y intercept now -2 is where m is, -2 is the slope
slope tells you the change in y for change in x a slope of -2 means that for 1 change in x we go down by 2
490 is a huge number so this is not drawn much to scale but thats about it
yes i get it thank you so much
okay sure! another way to do this would be to find any 2 points from your given equation and just connection
for example we found a point (0,490) by setting x=0
you can find other points by setting x = anything you want
generally though, what people do is find the y when x=0 and find the x when y=0 so for your equation y=-2x+490 we set x=0 and get y=-2*0 + 490 =490 so one point is (0,490) For the 2nd point we set y=0 0=-2x+490 now we solve for x 2x=490 x=490/2 =245 (245,0) is other other point |dw:1435269561978:dw|
thank you @dan815