Question 13

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Finding Horizontal Intercepts of Quadratic Functions. Graphing/Intersection Method

f(x) = x 4x + 5

2

1) Write the Vertical Intercept as an Ordered Pair

2) Write the Vertex as an Ordered Pair

3) Draw the function neatly on the graph using the poly

tool by plotting the vertex and vertical intercept.

4) Use your graphing calculator to determine the

horizontal intercepts of f(x) = x² - 4x + 5. Write

your answers as ordered pairs separated by commas. If

none exist, write DNE.

131

12

10+

9

8

6

3

HD

-3-

-4

-5+

A

13

Clear All Draw:

^

5

6

0/4 pts D

15

+

8/nThe graph of a quadratic function f(x) = ax²+bx+c is shown below.

Use this graph to answer the questions that follow.

-8 -7 -6 -5 -4 -3 -2

7+

6 +

5

4

S

+

TC

F

-8

Clear All Draw:

Judging from this graph, a is Select an answer ✔

D

Judging from this graph, cis

Give the equation of the Axis of Symmetry for this function,

and use the line tool to DRAW the Axis of Symmetry on the graph.

Axis of Symmetry:

3 4 5 6 78/nQuadratic Functions

The graph of a quadratic function f(x) = ax²+bx+c is shown below.

Use this graph to answer the questions that follow.

-8 -7 -6 -5 -4 -3 2 -1

8+

7-

6+

5

4

3

2

-2

-3

-5

-6

--7-

Judging from this graph, a is [Select an answer

-8+

Clear All Draw:

1 2 3 4 5 6

Axis of Symmetn

7 8

Judging from this graph, c is

Give the equation of the Axis of Symmetry for this function,

and use the line tool to DRAW the Axis of Symmetry on the graph.