Question

Which equation could have been used to create this graph?

Answer 1

D

Remember starts at zero slope is up 4 right 1
Y= 4/1x+0
Y=4x

Answer 2

Y = mx, where m is slope.
Slope is $\frac{rise}{run}$, where:
  rise --> vertical(y axis)
  run --> horizontal(x axis)

y=4x: slope = 4

rise = 4
run = 1

So go up 4, and right 1

If you plot points starting at (0, 0) you get the graph shown to the right; or vice versa, counting the rise and run and finding the slope.

Answer: D