Which of the following is an even function?
f(x) = 1x1
f(x) = x2 - 1
f(x) = -3x​

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

What is the point slope form of a line with slope -5 that contains point (2,-1)

Solve for x and select the correct answer