A hotel chain charges $90 each night for the first two nights and $55 for each additional night's stay. The total cost T is a function of the number of nights x that a guest stays.
(a) Complete the expressions in the following piecewise defined function.
T(x) =

90x
Correct: Your answer is correct.
if 0 ≤ x ≤ 2
55x+180
Incorrect: Your answer is incorrect.
if x > 2

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.

Find the radius of a circle that has a circumference of 16. the formula for the circumference of a circle is c = 2tr, where r is the radius and c is the circumference. the equation solved for r is r = c over 2π. r=4 r= 8 r=12 r= 16

If you apply the changes below to the linear parent function .f(x)=x what is the equation of the new function ? vertically stretch by a factor of 3 ; flip over the x axis