At noon, the temperature was 75LaTeX: ^\circ∘F. After cold front came through, by midnight the temperature dropped to 45LaTeX: ^\circ∘F. What was the rate of change in temperature? Group of answer choices

LaTeX: -30^\circ− 30 ∘− 30 ∘F

LaTeX: 30^\circ30 ∘30 ∘F

LaTeX: 5.5^\circ5.5 ∘5.5 ∘F

LaTeX: -2.5^\circ− 2.5 ∘F

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.