Question

What is the equation of the function that is graphed as line a?

Answer 1

Answer:

B

Step-by-step explanation:

We see that the line intersects the y-axis at -1.  As a result, we need to choose an equation with -1, either B or C.  We see that the different is the slope.  For choice B, the slope is $\frac{1}{3}$, meaning that every unit up equates to 3 blocks to the right.  Counting along the line, we see that this is correct.