posted by Elisa on .
Graphthe equation y plus 6 equals 1/8(x-2
1/8x - 2/8
add 2/8 to 6, so 61 times 8/8 makes it 48/8 plus 2/8 is 50/8
mx plus c would be 1/8 plus 50/8. Is this correct so afr?
If so how do I graph 50/8? Do I just put at 50 on the y axis and do 1/8 rise over run?
y=(1/8)x-50/8, or y=(1/8)x - 25/4
you probably had the sign reversed.
To plot the graph, you already have one point: the y-intercept, i.e. (0, -25/4).
You can get the x-intercept by substituting y=0, and solving for x.
In theory, two points are sufficient to plat a straight line. However, I suggest you take a third point, for example, x=20, to confirm that all three points lie on a straight line and avoid arithmetical errors.