Two gift shops sell postcards. each gift shop charges a fixed amount per postcard. the prices, in cents, for different numbers of postcards at the first gift shop are shown in the table below.

1st gift shop:

120/4 = 30 cents each

180/6 = 30 cents each

390/13 = 30 cents each

2nd gift shop:

204/7 = 29.14 cents each

192/8 = 24 cents each

270 /9 = 30 cents each

360/10 = 36 cents each

 so if both gift shops have a fixed price then the 9 post cards would be the answer since it matches 30 each like the 1st gift store

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

.mp4 files, because, video