Solve x2 – 64 = 0. isolate x2: x2 = 64 apply the square root property of equality: startroot x squared endroot = plus or minus startroot 64 endroot isolate the variable:

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.