Which are true of the function f(x) = 49()x? check all that apply.

a-- the domain is the set of all real numbers.
b-- the range is the set of all real numbers.
the domain is x > 0.
d-- the range is y > 0.
e-- as x increases by 1, each y-value is one-seventh of the previous y-value.
f-- the initial value for the function is 7.

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it. find the area of the sidewalk.