Fiona is making a graph that contains the points (2, 20), (4, 40), and (6, 60). She wants to add one more point. Which of the following points can Fiona add so that her graph represents a function?
every y is 20 + the one before
every x is 2 + the one before
that is a constant slope, straight line of slope
m = 20/2 = 10
y = m x + b so what is b
go back 2 in x and 20 in y from that (2,20 ) :)
heavens, we are at (0,0) so b = 0
so not only (0,0) is on our line but anything where y = 10 x