How do you graph y= x + 1?

1 Answer
Jan 31, 2017

Shift the graph of y=x one unit upwards, or alternatively, select two x values, find the y coordinates, plot the points and connect them.

Explanation:

First, graph the line y=x. It's a line that bisects both right angles created by the negative x and y axes and the positive x and y axes:

graph{x [-10, 10, -5, 5]}

Then, shift this graph one unit upwards. The reason for doing this might not be initially apparent, but by adding 1 to the x to get y = x + 1, you essentially increment the original value of y by 1 for any given x. This is the final result:

graph{x+1 [-10, 10, -5, 5]}

Alternatively, you can choose two x values and find the respective y coordinates. Plot the resulting two points, connect them, and extend the line.