Interstate 91 is the longest interstate highway in the united states, connecting the cities of seattle, washington and boston, massachusetts. the interstate is 4,987,000 meters in length. if 1 mile = 1.609 kilometers, how many miles long is interstate 90.

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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.

Which one is the correct answer, and why?