Need HeLpP please :)

Measures of the angle of r, 31 s (x+4) t (3x+9)

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

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.