Explanation: (8,8) 8-4 and 8-0 - (4,0)- 4 8 - you take the 8 as the numerator and 4 and the denominator and then divide 8 by 4 to=2 which is your slope - you pick 1 set of points (I chose (8,8) to finish the problem) 8(y-intercept)= 2(slope) • 8(x-intercept) +b 8= 16+b -16 -16 (subtract 16 from both sides) -8 (8-16) =b {b=-8) -now you put together your equation, which leaves you with { y=2(x) - 8} ^ ^ your slope your B value
-8/5 is a rational number because in order to be a rational number it must be able to be written as a fraction. -8/5 is a fraction; therefore, the negative does not affect it.
