sec 8 solving quadratic equations with the quadratic formula
Download
Skip this Video
Download Presentation
Sec 8: Solving Quadratic Equations with the Quadratic Formula

Loading in 2 Seconds...

play fullscreen
1 / 9

Sec 8: Solving Quadratic Equations with the Quadratic Formula - PowerPoint PPT Presentation


  • 215 Views
  • Uploaded on

Sec 8: Solving Quadratic Equations with the Quadratic Formula. Learning Target: Students will solve quadratic equations using the quadratic formula in mathematical and real-world situations and use the determinant to determine how many solutions there will be>. Homework: HomeRun worksheet.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Sec 8: Solving Quadratic Equations with the Quadratic Formula' - noleta


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
sec 8 solving quadratic equations with the quadratic formula

Sec 8: Solving Quadratic Equations with the Quadratic Formula

Learning Target: Students will solve quadratic equations using the quadratic formula in mathematical and real-world situations and use the determinant to determine how many solutions there will be>

Homework: HomeRun worksheet

standard form of a quadratic equation
Standard Form of a Quadratic Equation

Ax² + Bx + C = 0

  • Ex 1: Write the quadratic equation.
  • (a) A= 2, B = 3, C = -5
  • 2x² + 3x – 5 = 0
  • A= 1, B = -4, C = 8
  • A = -5, B = 0, C = 25
    • -5x² + 25 = 0
  • x² - 4x + 8 = 0
the q uadratic formula
The QUADRATIC FORMULA

The Quadratic Formula will find all x-values in any quadratic equation. On a graph, these would be the x-intercepts (zeros, roots).

*In order for the quadratic formula to work, the equation MUST EQUAL 0!

the discriminant
The Discriminant
  • The discriminant lets you know how many solutions there will be to a quadratic equation.
  • You find the discriminant using the formula
ex 1 quality core practice
Ex 1: Quality Core Practice

According to this determinant, how many solutions will this quadratic equation have?

slide8
Ex 3: The profit P from handmade sweaters depends on the price s at which each sweater is sold. The function P = -s² + 120s – 2000models the monthly profit from sweaters for one custom tailor. Find how much the company should charge for each sweater in order to break even.
homework
HOMEWORK
  • HOME RUN worksheet
    • Find the solutions using the quadratic formula
ad