1. 1. How do plants
manufacture food?
2. What are the factors that
affect the rate of
photosynthesis?

2. 3. How do materials and
energy flow in the
ecosystem?
You should already know the overall
chemical reaction of photosynthesis:

3. Lesson 1

4. INTRODUCTION TO
QUADRATIC FUNCTION
y=ax2+bx+c
Quadratic Function is a
second degree function of

5. the form f(x)=ax2 + bx –c,
where a, b and c are real
numbers and a ≠ 0. This is a
function which describes a
polynomial of degree.

6. Directions: State whether each of
the following equations represents
a quadratic function or not.
Justify your answer.
Yes/No Justification
1.y=x2+2
2.y=2x-10
3.y=9-2x
4.y=2x+2

7. 5.y=3x2+x3+2