Answer:
In y = mx + b, b is the y-intercept. The y-intercept is equal to 1.
Explanation:
The y-intercept is where a function crosses the y-axis, in a graph. This linear function is written in slope intercept form, y = mx + b, where b is the y-intercept, and m is the slope. Therefore, the y-intercept is 1. If you graphed this, it would start at y = 1, and go up 1 y-value and 2 x-values.