A history teacher asks six of her students the number of hours that they studied for a recent test. The diagram shown maps the grades that they received on the test to the number of hours that they studied. Is the relation a function? If the relation is not a function, explain why not b. Write the set of ordered pairs to represent the mapping. c. What does the first value in each ordered pair in part(b) represent? What does the second value in each ordered pair represent? d. Create a scatter plot Does the graph agree with your conclusion from part (a)? Explain your reasoning. ​