Question

-4x+y=9
rewrite that so y is a function of x

Answer 1

y can be expressed as f(x), but first let's isolate y.

\( \color{Black}{\Rightarrow y = 4x + 9 }\)
\( \color{Black}{\Rightarrow f(x) = 4x + 9 }\)

Easy :)

Answer 2

y=9+4x

Answer 3

so you flip the y and the 9?

Answer 4

exactly if you are solving for it you just isolate the variable

Answer 5

how about this equation?...
1.5y=18-6x

Answer 6

solve for y?

Answer 7

wait one minute

Answer 8

if your solving for y it would be y = 12 -4x

Answer 9

then find x by using -2, -1, 0, 1