Answer:
1: proportional
2: non-proportional
3: non-proportional
4: non-proportional
5: proportional
6: proportional
7: non-proportional
8: proportional
9. proportional.
10. proportional.
11. non-proportional.
12. proportional.
Step-by-step explanation:
I'm unsure how the proportional ones are actually calculated depending if it requires a dot on the exact origin, but depending on what I can graphically view and assume; every graph with the line running through the origin is proportional and every graph where the line does not run through the origin is non-proportional.
Answer:
c. although set a, is a proper function, with y being the function of x, c is the answer.
#8
24 • 24= 576 and 25 • 25= 625
76 • 76= 5,776 and 77 • 77= 5, 929
242 • 242= 58, 564 and 243 • 243= 59, 049√
766 • 766= 586, 756 and 767 • 767=588, 298
( by the way,
I'm squaring it because it's a square.)
#9
3x -5≥ 5x-25
-3x. -3x
-----------------
---> -5 ≥2x -25
+25. +25
---------------------
---->20≥2x
20/2 ≥ 2x/2
----->10≥x, the greatest 'x' can be is 10.