L e s s o n Q u i z T R a n s pa r e n cy
Properties of Quadratic
Functions in Standard
Form
5-2
Lesson Quiz
Consider the function f x ⫽ 2x 2 ⫹ 6x ⫺ 7.
1. Determine whether the graph opens upward or
downward.
2. Find the axis of symmetry.
3. Find the vertex.
4. Identify the maximum or minimum value of the function.
5. Find the y-intercept.
6. Graph the function.
y
x
7. Find the domain and range of the function.
Copyright © by Holt McDougal.
All rights reserved.
91
Holt McDougal Algebra 2
L e s s o n Q u i z T R a n s pa r e n cy
Properties of Quadratic
Functions in Standard
Form
5-2
Lesson Quiz
Consider the function f x ⫽ 2x 2 ⫹ 6x ⫺ 7.
1. Determine whether the graph opens upward or
downward. upward
2. Find the axis of symmetry. x ⫽ ⫺1.5
3. Find the vertex. ⫺1.5, ⫺11.5 4. Identify the maximum or minimum value of the function.
min.: ⫺11.5
5. Find the y-intercept. ⫺7
6. Graph the function.
y
x
7. Find the domain and range of the function.
D: ⺢; R: { y y ⱖ ⫺11.5 }
Copyright © by Holt McDougal.
All rights reserved.
91
Holt McDougal Algebra 2