3 pounds of bananas costs $1.5. What is the constant of proportionality that relates the cost in dollars. y, to the number of pounds of bananas, x? 1.5

0.5

2.5

4.5

HELP ASAP

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.

answer: 1, 3 and 5 are correct

step-by-step explanation:

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation: