Graphs of Linear Equations

Instructions:

Answer the following essay questions as one response using the text-entry box below.

1. Solve for  from the formula . Show and explain each step.

2. Use the equation  for the following exercises. Identify the slope and the y-intercept of the line described by the equation. Find one point on the line and justify how you know it is on the line. Then, find one point that is not on the line and justify how you know it is not on the line. Show and explain all of your work.

3. If one line passes through the points (3, -5) and (5, -4) and another line passes through the points (-2, 7) and (0, 8), determine if the two lines are parallel, perpendicular, neither, or if there is not enough information to make a conclusion. Describe your steps and explain how you made your conclusion.