Elizabeth's cell phone plan lets her choose how many minutes are included each month. The table shows the plan's monthly cost, y, for a given number of included minutes, x.

What is the y-intercept of the line given by the equation

Find the solution of each of the following.

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?