Question

For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.

(graph)
X:8 16 24
Y:13 26 39

yes; y=5x
yes; y=10x
tes; y=1.625x
no; y does not vary directly with x.

Answer 1

13 = 1.625 * 8
26 = 1.625 * 16
39 = 1.625 * 24
Therefore y vary directly with x.
Answer: C ) yes ; y = 1.625 x