Answer: y=x-4
Explanation:
The first step is to see what point runs through the y-axis, so you can get your y-intercept. The line runs through (0, -4), so -4 will be your y-intercept.
To calculate the slope, we can use the formula, y2-y1/x2-x1 to find the slope. We have to take two definite points to solve this. an example of two definite points is (1, -3), and (0,-4). So the change in y would be -4-(-3), which is -1, and for the change in x, 0-1 is -1 (Think of (1,-3) as point one, and (0,-4) as point 2). SO -1/-1 is 1, making the slope 1, making the equation y=x-4