Need help with Lesson 9: Linear Functions Unit Test
1. For the data in the table, does y vary directly withx ? If it does, write an equation for the direct variation.
I really need some explanation on how to do this.

X||| Y
10| 15
16| 24
20| 30
A.yes; y= 1.5x
B.Yes; y=2x
C.Yes; y= x+5
D.Y does not very directly with X

Question

Need help with Lesson 9: Linear Functions Unit Test
1. For the data in the table, does y vary directly withx ? If it does, write an equation for the direct variation.
I really need some explanation on how to do this.

X|||  Y
10| 15
16| 24
20| 30
A.yes; y= 1.5x
B.Yes; y=2x 
C.Yes; y= x+5
D.Y does not very directly with X

anonymous · Answer

I think its D because y varies as in:
10|15=y is 5 more than x
16|24=y is 8 more than x
20|30=y is 10 more than x

anonymous · Answer

there is no pattern for the numbers

anonymous · Answer

does that make sense?