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Applications of Quadratic Equations  Problem 5
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
Areas of shapes in geometry often involve quadratic relationships because areas are found by multiplying relationships between the sides of shapes. Here we look at how quadratics show up in problems related to the areas of triangles and rectangles. Start by setting up an equation for the area, then set it equal to zero in order to solve by factoring or the quadratic formula. Make sure your answer makes sense often we get two solutions, but only one of them will make sense as a side length. (That is, a side length could never be negative, so check your final solutions!)
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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.”
Thanks alot for such great lectures... I never found learning this easier ever before... keep up the great work.... :)”
You seem so kind, it's awesome. Easier to learn from people who seem to be rooting for ya!' thanks”
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Applications of Quadratic Equations
Problem 1 6,801 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 5,598 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 3 944 views 
Applications of Quadratic Equations
Problem 4 812 views 
Applications of Quadratic Equations
Problem 5 815 views
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