Which are true of the function f(x) = 49? Select three options. The domain is the set of all real numbers. The range is the set of all real numbers. The domain is x > 0. The range is y > 0. As x increases by 1, each y-value is one-seventh of the previous y-value.

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.