well none of the answer choices match up with all these statements ...
C. it only matches up with the y-intercept given
D. it matches with the y-intercept, and the x- intercept is not quite on the 1
*but i would say C is the closest, because it has an x-intercept of -1 and the maximum point is at (1,4) ... which are the same with the given statements except that they have opposite signs, but yeah i have no clue*
So, if the pizza is cut into 8 slices that would mean we just have to subtract 6 - 8 = 2 so your answer is 2/8 of the pizza is left
Hope this helped!