Question 9

Consider the Quadratic Function f(x) = 2x² - 8x

1) Identify the coefficients a, b and c:

a=

b=

C=

Select an answer

Graphing Quadratic Functions

-

2) Does the graph open up or down and why?:

4) Write the Vertex as an Ordered Pair

3) Write the Vertical Intercept as an Ordered Pair

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

tool by plotting the vertex and vertical intercept.

f(x) = −2x² – 8x

10+

9

8

7

6-

5

+

10 -9 -8 -7 -6 -5 -4 -3 -2 -1

3

2-

1

-2+

-5

-6+

1

0/3 pts

2 3 4 5 6 7 8 9 IC

-8-

-9

10+

Clear All Draw: