Consider the arithmetic sequence. -9, -2, 5, 12, . . . Given that the sequence is represented by the function f(n), what are the values of f(1) and the common difference? A. f(1) = -2 Common difference : 7 B. f(1) = -9 Common difference : 7 C. f(1) = -2 Common difference : -7 D. f(1) = -9 Common difference : -7

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.