<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Dismiss
Skip Navigation
Our Terms of Use (click here to view) and Privacy Policy (click here to view) have changed. By continuing to use this site, you are agreeing to our new Terms of Use and Privacy Policy.

9.9: Chapter Test

Difficulty Level: At Grade Created by: CK-12

Multiple Choice – Please circle the letter of the correct answer and write that letter in the space provided to the left of each question.

  1. _____ What is the general form of the following quadratic equation? 12(y1)=(x+3)2
    1. 2x2+6x+10
    2. 2x2+12x+17
    3. 2x2+12x+19
    4. 2x2+6x+17
  2. _____ What are the zeros of the following quadratic equation? (m+2)2=25
    1. m=7; m=3
    2. m=7; m=3
    3. m=7; m=3
    4. m=7; m=3
  3. _____ h(t)=2(t3)2+21 This quadratic function represents height (h) in yards, reached by a ball thrown into the air after t seconds. From what height was the ball thrown?
    1. 2yd
    2. 5yd
    3. 21yd
    4. 3yd
  4. _____ What is the value of the discriminant for the following quadratic equation? 3y25y=1
    1. 13
    2. 37
    3. 37
    4. 13
  5. _____ Simplify the following and express the result as a complex number. (45i)(3+2i)
    1. 227i
    2. 27i
    3. 22+7i
    4. 227i
  6. _____ For what values of ‘m’ does the following equation have imaginary roots? 4x2+mx+9=0
    1. m=12; m=12
    2. m>12; m<12
    3. m<12; m<12
    4. m<12; m>12
  7. _____ The length of a driveway is 5yd longer than the width. If the area of the driveway is 300 yd2, what are its length and width?
    1. l=10 yd; w=15 yd
    2. l=20 yd; w=15 yd
    3. l=10 yd; w=3 yd
    4. l=25 yd; w=20 yd
  8. _____ What are the exact roots of the following quadratic equation? 2x2=2x+3
    1. x=1±72
    2. x=2±284
    3. x=1±74
    4. x=2±204
  9. _____ What is the solution for the following radical equation? x+2=x
    1. the roots are 2 and 1
    2. the roots are –2 and 1
    3. the root is 2
    4. the root is 1
  10. _____ The following quadratic equation was solved using the quadratic formula. \begin{align*}x^2-4x=3\end{align*} Which step contains the first mathematical error?
  11. Step 1:
  12. \begin{align*}x=\frac{- \left(-4\right) \pm \sqrt{\left(-4\right)^2-4 \left(1\right) \left(-3\right)}}{2 \left(1\right)}\end{align*}
  13. Step 2:
  14. \begin{align*}x=\frac{4 \pm \sqrt{16-12}}{4}\end{align*}
  15. Step 3:
  16. \begin{align*}x=\frac{4 \pm \sqrt{4}}{2}\end{align*}
  17. Step 4:
  18. \begin{align*}x=3;x=1\end{align*}
    1. Step 1
    2. Step 2
    3. Step 3
    4. Step 4

My Notes/Highlights Having trouble? Report an issue.

Color Highlighted Text Notes
Show More

Image Attributions

Show Hide Details
Description
Grades:
Date Created:
Aug 20, 2013
Last Modified:
Jan 14, 2015
Save or share your relevant files like activites, homework and worksheet.
To add resources, you must be the owner of the section. Click Customize to make your own copy.
Please wait...
Please wait...
Image Detail
Sizes: Medium | Original
 
Here