Answer:
[tex]y=4.5\times x[/tex]
Step-by-step explanation:
Solving;
[tex]y=4.5\times x[/tex]
when x=3,
[tex]y=4.5\times3=13.5[/tex] centimeters
when x=4
[tex]y=4.5\times4=18[/tex] centimeters
when x=7
[tex]y=4.5\times7=31.5[/tex] centimeters
when x=10
[tex]y=4.5\times10=45[/tex] centimeters
