What are the domain and range of the function {(3, 1), (5, –1), (9, –1), (2, 7), (–4, 1)}?

a.
domain: {3, 5, 9, 2 }; range: {1, 7}

b.
domain: {1, –1, 7}; range: {3, 5, 9, 2, –4}

c.
domain: {3, 5, 9, 2, –4}; range: {1, –1, 7}

d.
domain: {1, 7}; range: {3, 5, 9, 2 }

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

52 cm radius = diameter = area = circumference = circumfer

Which statement shows that 6.24 is a rational number? a. 6.24 = 6.242424 b. 6.24 = 6.24 c. 6.24 = 68⁄33 d. 6.24 = 66⁄25