Does this equation describe a linear function? y=7x-4
a) linear
b) nonlinear

yes

step-by-step explanation:

so of course you want to start by plugging the 5 in which goes to 7(5)+3(5)=50 because 7*5=35 and 3*5=15 and then add them together, then plug in the 5 to the other equation as well 9(5)+5=50 because 9*5= 45 and then add 5 and so yes they are equivalent.

umm you say your want to . but you do know that this is the mathematics.  

o~o