How can you tell if linear functions are increasing in a table, graph , and equation? How can we find the y- intercept also

You can tell it’s increasing when the output values increase as the input values increase. It also has a positive slope. It slants upward from left to right. You can find the y-intercept by checking out which point crosses the y axis. The y axis is the vertical (up, down) line in the middle of the graph.

Well is there a picture