Which of the following are quadratic functions? Justify your answer. (Use separate sheet for justification) 1. = 5 2 − 8 2. () = ( + 3) 2 3. () = ( − 2) ( + 5) 4. = − 2 5. () = 2 + 5

LT #1: DAY 1 – MODULE 16
Task instructions:
• Review: “What’s IN”. (5 mins.)
• Recap: “What New” (5 mins)
• Study: “What is it”. Representing Quadratic Function using Equation (20 mins.)
• Attend the online class for consultation and feedbacks.
• Answer the activity below, write your answer in your notebook using the format given during the first days of class.

Which of the following are quadratic functions? Justify your answer. (Use separate sheet for justification)
1. = 5 2 − 8
2. () = ( + 3) 2
3. () = ( − 2) ( + 5)
4. = − 2
5. () = 2 + 5

DAY 2: MODULE 17
Task instructions:
• Read “What’s IN” – (5 mis.)
• Read and study: “What’s New & What is It” – (25 mins) -pp. 3 -7
• Study the lesson about “General Form and Standard form of Quadratic Function.
• Attend the online class for feedbacks and consultation.
• Answer the activity below submit your answer via Pm.

ACTIVITY 2. MODULE 17
Transform each quadratic function into standard form. Identify the constants a, h and k
1. y = x2 + 10x – 13
2. y = x2 – 6x + 5
3. y = x2 – 2x + 3
4. y = x2 – 3x + 16
5. y = x2 – 18x – 9

ACTIVITY 1: MODULE 18
Graph the following quadratic function. Use graphing paper. Identify the vertex and axis of symmetry.
1. = 2 2
2. () = ( + 3) 2
3. () = 2 + 5
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