Write the equation in function notation. 6x - y = 11

Answer 1

We need to solve for y, then change y to f(x).

6x - y = 11

-y = -6x + 11

y = 6x - 11

f(x) = 6x - 11

With a function, y and f(x) are interchangeable. Later, you'll see something like f(3), which means "what is y if x = 3. In this case...

f(3) = 6(3) - 11

f(3) = 7

So, one point on the graph of y = 6x - 11 is (3,7).

Answer 2

6x-11-y=0

6x-11 = y

y = f(x) = 6x-11