1. Use your foldable on page 18 and angry birds warm-up on page 28.
Helpful hints to help you with Graphs of Quadratic Functions foldable and Quadratic Equations Matching Activity
Use your foldable on page 18 and angry birds warm-up on page 28.

2. Factor the quadratic equation to find the roots. 1 2 3 4 7 8 9 5 6 A B C D G H I E F
Hints:
Factor the quadratic equation to find the roots.
Find the roots on the graph.
3. Use foldable on pg. 18 to help.
I will do problem #1 as an example on the next slide.

3. Look at the foldable on page 18 to help
Work shown on page
x = 1.5
x2 – 3x – 4 = 0
(x – 4)(x + 1) = 0
x = 4 x = -1  
x = -1
x = 4
roots 
(1.5, -6.25)
How to find the axis of symmetry?
Use the axis of symmetry formula 8
How to find the Vertex?
Substitute “x” into the quadratic equation to get “y”
x = 1.5
(1.5, -6.25)
y = x2 – 3x – 4
y = (1.5)2 – 3(1.5) – 4
y = -6.25
Vertex: (1.5, -6.25)
Look at the foldable on page 18 to help

4. Hints:
Find the roots on the graph.
2. Work backwards to get the equation.
Use angry birds warm-up on pg. 28 and foldable on page 18 to help
I will do problem #3 as an example on the next slide.

5.  (1, -1) x = 1   (0, 0) {0, 2} Min (lowest point)
y = x2 – 2x Letter E
roots are in between so use the equation strips to help you find the answer. It’s like a puzzle…
x = 0 x = 2
x(x – 2) = 0
x2 – 2x = 0
Equation needs to be in standard form y = ax2 + bx + c
y = x2 – 2x (check with graphing calculator…I know, so much work )