If x=y-3 and y=z^2, what is x in term of z

Which graph corresponds to the function f(x) = x2 + 4x – 1?

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

What is always true about a positive integer raised to a negative odd power?