7. Which relations represent a function? Place a checkmark in the box for all that apply. x
2
0
1
2
3
4
4
5
3
{(-4, 2), (-1, -7),
(0,5), (5, 2)}
y
-1
0
5
5
-1
7
9
00
X
у
-4
-7
-2
3
5

Step-by-step explanation:

The relation in the picture is a function

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24