Which of the equations are true identities? A. n(n − 2)(n + 2) = n? – 4n
B. (x + 1)² – 2x + y2 = r² + y2 + 1

The graph shows the distance kerri drives on a trip. what is kerri's speed?

Find the distance between the point (-3,-4), and (see the picture below)

The graph of f(x) is obtained by reflecting the graph of f(x)=-3|x| over the x-axis. which equation describes f(x)? a) f(x)=3|x| b) f(x)=|x+3| c) f(x)=-3|x| d) f(x) = - |x+3|