What is the vertex of the graph of y + 2x + 3 = –(x + 2)^2 + 1?
a. (–3, –33)
b. (–3, 3)
c. (3, –24)
d. (3, 21)

Rewrite the following without an exponent. (5/8)-1

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.