Answer:
1) f(3) = 1
2) x = -1
Step-by-step explanation:
1) Whenever a question is asking to find or evaluate what f(3) is, it is asking to find the corresponding y-value of the function based on the number in the parentheses, which is given the x-value. Thus, the question is asking, "what is the y-value of the point on the graph that has an x-value of 3?" By reading the graph, we can see that it passes through (3,1), thus 1 is the answer.
2) f(x) is another way of saying y. Thus, the question is asking, "what is the x-value of the point on the graph with a y-value of 3?" By reading the graph, we can see that the line passes through (-1, 3). Thus, the answer would be -1.
