A photographer increases the price he charges to print photographs. He wants to know if this affects his sales
Last week before the price increase, the average number of photos ordered was 12.
This week customers ordered:
Photos ordered
Number of customers
1 - 10
26
1120
14
21 - 30
6
31 - 40
41 - 50
0
51 - 60
0
Does the price increase seem to have had an effect on the number of prints ordered per customer?
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it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

the answer on e2020 was d.

graph #4 (last graph) depict the function   f(x)= -m(x-d)^1/5 i

step-by-step explanation:

we know that

m=slope

but in this function slope is -m that means slope is decreasing and it is decreasing by 1/5 points down the x-axis.

which is shown in graph four

a decreasing slope down x-axis by 1/5 points.

hence 4th graph is the right option for this.