Level) 1.1 Find the constant of proportionality from a table ZCK
You've won a new prize! Go to your game board. x
-)) 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

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.

the area of the rectangle is 35units^2.

step-by-step explanation:

graph it and find the distance.

it is a 5*7 rectangle.

therefore the area is 35units^2.

(1 km=1000m, 1m=100 cm)