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Applications of Quadratic Equations  Problem 4
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
If you're allowed the use of a grapher, whether it be a graphing calculator or online program, you can solve quadratic equations by setting up a system of equations. Let your first function into your calculator be y = one side of your given equation, and let the second function be y = the other side of your quadratic function. From there, use the commands to find where the two graphs intersect. Here, we model the commands on a TI grapher to confirm what we do by hand.
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Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
Your tutorials are good and you have a personality as well. I hope you have more advanced college level stuff, because I like the way you teach.”
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Applications of Quadratic Equations
Problem 1 6,637 viewsSuppose a rectangle has an area of 90m² and the sides are x + 1 and x + 2. Find the dimensions of the rectangle.

Applications of Quadratic Equations
Problem 2 5,490 viewsA diver starts on a platform 50 feet above the pool. Assume his starting upward velocity v is 6 ft/dec. Use the equation h(t) = 16t² + vt +s where s is the initial height to find the number of seconds before he hits the pool.

Applications of Quadratic Equations
Problem 3 896 views 
Applications of Quadratic Equations
Problem 4 761 views 
Applications of Quadratic Equations
Problem 5 761 views
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