Wetzel

Math 155

7.1 – Graphing and Functions

The Rectangular Coordinate Plane –

·        x-axis and y-axis

·        origin

·        quadrants

·        ordered pairs

Ex.:

1.)  Plot the points (5, 3),  (-2, 4), (3, -1), and (0, 4).

2.)  Find the coordinates for points A, B, and C.

What is a function?

            Notation –

            Evaluating -

            Domain –

            Range –

Ex.:

3.)  Given f(x) = -3x + 5,  find f(4), f(-3), and f(2).

HW: p.376  #1-13odd, 33-41odd