Answer:
Y does not vary directly with x
Step-by-step explanation:
Direct proportion: When x is directly proportional to y
[tex]y\propto x[/tex]
[tex]y=kx[/tex]
k=Proportionality constant
[tex]k=\frac{y}{x}[/tex]
When x is directly proportional to y then k remain constant.
x=7 and y=11
Then , [tex]k=\frac{11}{7}=1.6[/tex]
x=8 and x=13
[tex]k=\frac{13}{8}=1.6[/tex]
x=9 and y=15
[tex]k=\frac{15}{9}=1.7[/tex]
x=10 and y=17
[tex]k=\frac{17}{10}=1.7[/tex]
Value of k does not remain constant .Therefore, y does not vary directly with x.
