Level) 1.1 Find the constant of proportionality from a table ZCK
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-)) Justin is a tech geek and loves his new smartphone, but he is frustrated by how slowly
the battery charges. After coming home from school, Justin notices that the battery level is
low, so he plugs in his phone to charge the battery.
) This table shows the relationship between the total time in hours) that Justin charges
his phone, x, and the battery level (as a percent of its full capacity), y.
<)) x (hours)
) y (percent)
18
28
AW NA
38
48
) According to the values in the table, do x and y have a proportional relationship?
yes
no