1. 2.1(b) Notes: Graphing Quadratic Functions
Date:
2.1(b) Notes: Graphing Quadratic Functions
Lesson Objective: Graph quadratic functions by plotting points.
CCSS: A.SSE.3a, A.REI.1
You will need: a calculator
This is Jeopardy!!!: When x = 0, this is y for
y= -3x² + 6x – 5 and this is what it is called.

2. Lesson 1: Graph by Plotting Points
Domain: The “input” values, x, that can be used for the function; {x| }
Range: The “output” values, y, that are calculated by plugging in x values;
{y| }

3. Lesson 1: Graph by Plotting Points
Use a table of values to graph the quadratic functions. State the domain and range.
#1 y = -x² + 2
Domain: {x| }
Range: {y| } x
f(x) = -x² + 2

4. Lesson 1: Graph by Plotting Points
Use a table of values to graph the quadratic functions. State the domain and range.
#2 y = x² – 6x + 3
Domain: {x| }
Range: {y| } x
f(x)= x² – 6x + 3

5. Lesson 1: Graph by Plotting Points
Use a table of values to graph the quadratic functions. State the domain and range.
#3 y = –2x2 – 8x – 5
Domain: {x| }
Range: {y| } x
f(x)= –2x2 – 8x – 5

6. 2.1(b): Do I Get It? Yes or No
Use a table of values to graph the quadratic functions. Find the equation of the A/S, the vertex, the y-intercept, the domain and range.
y = 3x² + 6x – 4
y = -x² + 5x – 2 x
f(x)=

7. 2.1(b): Do I Get It? Yes or No
Use a table of values to graph the quadratic functions. Find the equation of the A/S, the vertex, the y-intercept.
1. y = 3x² + 6x – 4 x
f(x)= 3x² + 6x – 4

8. 2.1(b): Do I Get It? Yes or No
Use a table of values to graph the quadratic functions. Find the equation of the A/S, the vertex, the y-intercept.
2. y = -x² + 5x – 2 x
f(x)= -x² + 5x – 2