i need help!

hi guest!
 

we can start off by finding the y-coordinate which is (0,3),so that means that b=3.

next we can find the slope by using $\dfrac{y_2-y_1}{x_2-x_1}$, and we can use (-1,0) and (0,3).

This would equal $\dfrac{3-0}{0-(-1)}=\dfrac{3}{1}=3$.

so the answer is $\boxed{y=3x+3}.$

Hmm

Khan Academy stuff I see

Although someone has given you the answer already, you shouldn't go right to that. Let's work through this.

The equation for a line is $y=mx+b$, where $m$ is the slope and $b$ is the y-intercept.

Here, we see that $3$ is obviously the intercept, but what is the slope? Well, to find it, we can get a set of clean points, and then apply the formula $slope=\frac{\text{change in y}}{\text{change in x}}$. Here, we see that for every $1$ unit across, it goes $3$ units upwards. Using our formula, we get $\frac{3}{1}=3$ as our slope, so our answer is $\boxed{y=3x+3}$