Please, in the future, post just one problem at a time.
Looking at Problem #1: The line intersects the y-axis at (0,-3) and intersects the x-axis at (1,-1). At least, this is what I see; your graph is small. -3-[-1] The slope of that line is then m = rise / run = ------------ = +2. 0 - 1 [change in y] Slope = m = rise / run = -------------------- [change in x]
