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Wize High School Grade 11 Math Textbook > Solving Quadratic Equations

Solving Quadratic Equations Strategies

Discriminant Analysis (Determining the Number of Solutions/Roots from the Quadratic Formula)Previous Section
Solving Systems of EquationsNext Section
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Solving Quadratic Equations



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Mark Yourself Question
  1. Grab a piece of paper and try this problem yourself.
  2. When you're done, check the "I have answered this question" box below.
  3. View the solution and report whether you got it right or wrong.

Practice: Graphing Quadratic Relations

Graph y=x2+x−12y=x^2+x-12 using two different methods.
checklist
Mark Yourself Question
  1. Grab a piece of paper and try this problem yourself.
  2. When you're done, check the "I have answered this question" box below.
  3. View the solution and report whether you got it right or wrong.

Practice: Solving Quadratic Equations

The product of two consecutive integers is 272. Find the two integers.

Practice: Solving Quadratic Equations

A cannon ball is fired, and its height in m is modelled by the equation h=−2t2+16t+18h=-2t^2+16t+18, where tt is the time in seconds after the cannon trigger was pulled.

a) What is the maximum height of the cannon ball?

b) When does the cannon ball reach 5 m?