Question

How do you create a table and graph the equation `y=2x-1`?

Answer 1

You can create a table by substituting any value for `x` and then solving for `y`. I'll be taking 3 values:

1. Let `x=0`
   Then,
   `y=2(0)-1`
   `y=-1`
2. Let `x=1`
   Then,
   `y=2(1)-1=2-1`
   `y=1`
3. Let `x=2`
   Then,
   `y=2(2)-1=4-1`
   `y=3`

We can then make a table for `x` and corresponding `y` values as follows:

`x****(0)****(1)****(2)`
`y****(-1)****(1)****(3)`

So, you'll get three points on the graph with x-coordinates and y-coordinates that can be taken from the table as `(0,-1), (1,1) and (2,3)`

Plot the points, and pass a straight line through them. The graph will look something like this: