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Warm Up Find the perimeter and area of the rectangle below. 4x - 3

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Presentation on theme: "Warm Up Find the perimeter and area of the rectangle below. 4x - 3"— Presentation transcript:

1 Warm Up Find the perimeter and area of the rectangle below. 4x - 3
Multiply (2x2 – 1)(4x3 +3x – 5) Simplify (x – 5) – (-5x2 + 4x – 6) 4x - 3 2x + 5

2 HW Check – 6.10

3 Review from Friday Use the graph to find the following: Vertex
Axis of Symmetry X-intercept Y-intercept qqqqqqqqqqqqqqqqqqqqqq

4 Graphing in a Calcuator

5 Properties of Parabolas
Graph the following functions on a graphing Calculator. What do you notice? 1. Y1: y = x2 Y2: y = -x2 2. Y1: y = ½x2 + 2 Y2: y = -½x2 + 2

6 Properties of Parabolas
If a is POSITIVE then the parabola opens UP IF a is NEGATIVE then the parabola opens DOWN Would the following parabolas open up or down? a) y = -2x2 + 5 b) y = x2 – 3x - 1

7 Properties of Parabolas
Graph the following functions on a graphing Calculator. What do you notice? 1. y = x2 + 3x – 5 2. y = 3x2+ 2x + 3

8 Graphing y=ax2 + bx + c Y –intercept is the ordered pair (0,c)

9 Calculator Commands Graph: Y=  Graph Vertex: 2nd Trace  Min or Max (left bound, right bound, enter) X-Intercepts: 2nd Trace  Zero (find each one separately) Y-Intercept: 2nd Graph  find where x is zero

10 Use a graphing calculator to answer the following questions
Use a graphing calculator to answer the following questions. All equations must be in y= before we can graph them using the calculator. Ex. 1 Standard Form:__________ Graph: Vertex: ____ Axis of symmetry: _____ X-intercept:_____ Y-intercept:_____ Domain Range

11 Ex 2: Standard Form:______________ Graph: Vertex: ____
Axis of symmetry: _____ X-intercept:_____ Y-intercept:_____ Domain Range

12 Ex 3: Standard Form:______________ Graph: Vertex: ____
Axis of symmetry: _____ X-intercept:_____ Y-intercept:_____ Domain Range

13 Practice Worksheet

14 HW 6.7 Tonight


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