Which of the following sets contains only rational numbers?

Which of the following best describes the number shown below?
0.747474...

A.
both rational and irrational
B.
neither rational nor irrational
C.
irrational
D.
rational

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.