Is y=2x + 3 proportional or non-proportionalis y=5x proportional or non-proportional

the first is not question proportional, the second question is proportional

Step-by-step explanation:

if you graph 2x+3 you can't graph it so, therefore number 1 is not proportional.

The second one is proportional because you can easily graph 5x. Therefore number 1 is not proportional, number two is proportional.

b and c

step-by-step explanation:

step-by-step explanation:

f(gx)=f(1/x+2)

=(1/x+2)+2

=(1+2x)/2+2

=(1+2x+4)/2

= (2x+5)/2