Question

How do you graph the line `y = 3x + 1`?

Answer 1

To graph a straight line you only need to find two points on the line

Explanation:

You have to find two points on the line, that is, two points that satisfy the equation `y=3x+1`. But using the equation of the line if you take `x=0`, you get `y=1`, so the point `(0, 1)` is on the line. Similarly, you can take `x=1` and the equation gives you `y=4`, so the point `(1, 4)` belongs to the line. Now you only need to mark these two points on a graph, and draw the line going through them, like so:

graph{3x+1 [-10, 10, -4.44, 5.56]}

Of course, any other pair of points on the line would have been the same, such as `(2, 7)` and `(3, 10)` for example