Plot a Line

Plot a line that has a slope of 2 and a y-intercept of -1. What is its equation?

Plot a line that has a slope of -1 and a y-intercept of 3. What is its equation?

Plot a line that has a slope of 2/3 and a y-intercept of -3. What is its equation?

Plot a line that has a slope of 0 and a y-intercept of -1. What is its equation?