If the area of the region encircled by axis-x, axis-y, and y=8x+a is greater than 1, what is the range of a?
Length of the base of the triangle = x-intercept of the line = -a/8
Length of the height of the triangle = y-intercept of the line = a
So, area of the triangle = |-a/8|*|a/2| = a²/16
So, a²/16 > 1
So, a² > 16
So, either a > 4 or a < -4












