Final answer:
The slope of the graph with the coordinates (1,2), (0,3), and (-1,4) is -1.
Therefore, the slope of the graph is -1 (option C).
Step-by-step explanation:
The slope of a graph can be calculated using the formula:
m = (y2 - y1) / (x2 - x1)
where (x1, y1) and (x2, y2) are any two points on the graph.
Using the given coordinates (1,2), (0,3), and (-1,4), we can calculate the slope as follows:
m = (2 - 4) / (1 - (-1)) = -2 / 2 = -1
Therefore, the slope of the graph is -1 (option C).