#### Answer

b

#### Work Step by Step

To match a graph with an equation you need to check the slope and the y-intercept. The slope is the number in front of the x and the y-intercept is the number without a letter. In this case the y-intercept is 1 and the slope is -1. a negative slope means that the line goes downwards from left to right. b is the only graph that fits to these conditions.