Question

Put the following into a function form
5x+15y=30

Answer 1

you want to annoy your teacher? put the totally correct, but not expected answer of
\[f:=\{(x,y)|5x+15y=30\}\]

Answer 2

what they want you to do is solve this equation for \(y\) which takes only two steps

Answer 3

subtract \(5x\) from both sides to get
\[15y=30-5x\] then divide both sides by \(15\) and get
\[y=2-\frac{1}{3}x\] or
\[f(x)=2-\frac{1}{3}x\]

Answer 4

i still think you should write
\[\large f:=\{(x,y)|5x+15y=30\}\] since that is the real right answer

Answer 5

thank you