Question

Help:
Determine if y=2x+1 is a function.

Answer 1

it is a function if you write it as one
\[f(x)=2x+1\]

Answer 2

each x value will give only one y value

Answer 3

hello myininaya

Answer 4

only die hard openstudy fans stay through the upgrade

Answer 5

function
not a function

Answer 6

See the attached file, its a graph of the line. An expression is a function if has only one y-value for every single x-value as satellite said. You can use the "the vertical line test" to test for a valid function!

Answer 7

function

Answer 8

all equations of lines are functions except a vertical line x = a