Question

please help! tell whether x and y are proportional. if so, identify the constant of proportionality
1. y= 1/2x
2. y=2x + 7
3. x= y + 2
thanks

Answer 1

Answer:

y = (1/2)x is proportional; (1/2)

Step-by-step explanation:

1. y= 1/2x   Proportional; constant of proportionality is 1/2.

2. y=2x + 7   Not proportional because of the non-zero y-intercept.

3. x= y + 2    Not proportional (same a reason as for #2)