Employees at a hardware store are receiving pay raises. Dan’s hourly pay rate is increasing from $12 to $14. Kathy’s hourly pay rate is increasing from $13 to $15.

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

the line of

d

step-by-step explanation:

i used the pitagoras theoreme