Answer: y = -1/4x + 16
Explanation:
To find b (y-intercept): Find at what y-value the graph touches the y-axis.
To find m (slope): If your graph is going downward from left to right, you will have a negative slope. If you graph is going upward from left to right, you will have a positive slope. Since your graph is going down from left to right, your slope will be negative.
Use 'rise over run' method to find the values.
In this case, pick two points and use the slope formula to find m.