WILL MARK BRAINLIEST IF THAT MATTERS
Let’s take our function from before: f(x) = x + 2. Plug in some values for x. f(2) = 4. f(3) = 5. f(4) = 6.


Now we have a set of inputs and outputs for this function. You can write them as a set of ordered pairs, like this: (2, 4), (3, 5), (4, 6).


Like all sets of ordered pairs, these points can be plotted on a graph. If you plot

f(x) = x + 2 and connect the points, you will see that the graph is a straight line. This means that f(x) = x + 2 is a linear function.


Which of these is a set of inputs and outputs for the function f(x) = 2x + 4?


A

(1, 2), (2, 5), (3, 8)


B

(1, 4), (2, 6), (3, 7)


C

(1, 5), (1, 8), (1, 10)


D

(1, 6), (2, 8), (3, 10)