Question

What function is graphed below y = 2x y = x + 3 y = 2x + 3 y = 2x + 2

Answer 1

Answer:

y = 2x + 3

Step-by-step explanation:

Going from point (0, 3) to point (1, 5), you go 2 units up and 1 unit right. That means the rise is 2, and the run is 1.

slope = rise/run = 2/1 = 2

The slope is 2.

y = 2x + b has a slope of 2.

Now we need b.

Looking at the graph, we see that the y-intercept of the line is point (0, 3), so b = 3.

The equation is

y = 2x + 3