In your own words describe how you can check to see if an ordered pair is a solution to a system of equations

Find the roots of the equation below. x^2 - 6 + 9 = 0

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?