Question

Use function notation to write the equation of the line.

f (x) = 3x
f (x) = 3
f (x) = −3
f (x) =0.3x

Answer 1

for the attachment i think y=3

Answer 2

It is a horizontal line that crosses the y-axis at y = 3

So in function notation it is f(x) = 3

Answer 3

f(x) is another way of saying y

The line crosses at 3 so its y = 3 or f(x) = 3