Chapter 6, Lesson 2


6-1.A understand the meaning of ordered pair
Which pair is not written in the same order as the others?
(a) (Washington, George) (b) (Lincoln, Abraham)
(c) (Franklin, Roosevelt) (d) (Jackson, Andrew)

6-1.B substitute into an algebraic expression and evaluate
Evaluate each expression for x = —3.
a.
9 — x2
b. —x2 — 92
c. —(x + 9)2