The base is 3 and the height is 2, so the area is 3 . A
The y-intercept of the line y = 8x – 24 is –24. Find the x-intercept by
plugging in y = 0:
The y-intercept of the line y = mx + 12 is +12. To intersect in the fourth
quadrant—which is the lower right quadrant—this second line has to
have a negative slope. Not just any negative slope, but one negative
enough to get it down across the x-axis before it hits the other line. In
other words, the x-intercept of this second line has to be somewhere
between the origin and the point (3, 0).