4/4 Warm Up- Monday Where do I need to be tomorrow? Take this time to find out where to go for STAAR testing tomorrow or if classes are being relocated if not STAAR testing.

4/4 Objective: I will be able to find solution, roots, or zeros of quadratic equation using a graph.

4/4 Vocabulary Solutions to a quadratic equation are where the graph crosses the x-axis (also known as x-intercept). Solutions are also called roots or zeros.

4/4 Vocabulary Review What four words mean the same thing when solving quadratics? Solution X-intercept Roots Zeros

4/4 Concept Builder How many solutions do each of these quadratic equations have? 21 No Solution

STAAR Testing Day 3/29

3/30 Warm Up- Wednesday Where do I need to be tomorrow? Take this time to find out where to go for STAAR testing tomorrow or if classes are being relocated if not STAAR testing.

3/23 Assignment Roots, Solutions, Zeros, and X-intercepts by Graphing Worksheet, Numbers 3,5,7,9

3/31 STAAR Testing Day: unless testing, meet in Room 406

4/1 Warm Up: Vocabulary Review: Group the similar words into 4 groups solutions x-value y-value function relationship domain range x-intercepts zeros roots input output independent dependent

4/1 Warm Up: Vocabulary Review: Group the similar words into 4 groups solutions x-value y-value function relationship domain rangex-intercepts zeros roots inputoutput independent dependent

4/1 Objective: I will be able to find solution, roots, or zeros of quadratic equation using the quadratic formula.

The Quadratic Formula Story

y = x 2 - 4x + 3 Steps: Identify a, b, and c Substitute a, b, and c into formula Put into calculator using addition first Instead of putting everything back in for subtraction, use 2 nd Enter and replace + with -

y = (1/2)x 2 – 4x + 6 Steps: Identify a, b, and c Substitute a, b, and c into formula Put into calculator using addition first Instead of putting everything back in for subtraction, use 2 nd Enter and replace + with -

y = -2x 2 + 8x - 7 Steps: Identify a, b, and c Substitute a, b, and c into formula Put into calculator using addition first Instead of putting everything back in for subtraction, use 2 nd Enter and replace + with -

y = (1/2)x 2 - 2x + 4 Steps: Identify a, b, and c Substitute a, b, and c into formula Put into calculator using addition first Instead of putting everything back in for subtraction, use 2 nd Enter and replace + with -