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Introdu cing …Quad ratic Equatio ns Using Quadratic Equations The Quadratic Formula Solutions of Quadratic Equations U Substit ution Formula s & Problem Solving 555555 10 15 20
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SLIDE 8.1 A Solve: 14x 2 + 9x = 0
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SLIDE 8.1 B Solve: x 2 + 8x + 15 = 0
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SLIDE 8.1 C DAILY DOUBLE!!!
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SLIDE 8.1D Solve: 25x 2 + 4 = 0
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SLIDE 8.2 A The width of a rectangular garden is 5 ft less than the length. The area of the garden is 24 square feet. Find the dimensions of the garden.
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SLIDE 8.2 B The hypotenuse of a right triangle is 25 m long. The length of one leg is 17 m less than the other. Find the lengths of the legs.
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SLIDE 8.2 C Find three consecutive integers such that the square of the first plus the product of the other two is 46.
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SLIDE 8.2 D Airplane A travels 2800 km at a certain speed. Airplane B travels 2000 km at a speed that is 50 km/h faster than airplane A in 3 hours less than time. Find the speed of each airplane
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SLIDE 8.3 A Solve using the Quadratic Formula: x 2 – 6x – 4 = 0
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SLIDE 8.3 B Solve using the Quadratic Formula: y 2 – 7y = 30
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SLIDE 8.3 C Solve using the Quadratic Formula: 5m 2 + 3m – 2 = 0
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SLIDE 8.3 D Solve using the Quadratic Formula: x 2 – 4x + 5 = 0
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SLIDE 8.4 A Determine the nature of the solution for: x 2 + 3x + 4 = 0
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SLIDE 8.4 B Find the sum and product of the solutions for: 8 -2x 2 + 4x = 0
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SLIDE 8.4 C Write the quadratic equation with the solutions -2/5, 6/5
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SLIDE 8.4 D Use the sum and product properties to the write the quadratic equations with solutions: -2, 5/4
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SLIDE 8.5 A Solve: 2x – 9√x+ 4 = 0
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SLIDE 8.5 B Solve: x 4 -3x 2 + 2 = 0
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SLIDE 8.5 C Solve: x/x-1 – 6√x/x-1 – 40 = 0
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SLIDE 8.5 D Solve: 5(x+2/x-2) 2 – 3(x+2/x-2) – 2= 0
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SLIDE 8.6 A h=V 2 /2g; Solve for V
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SLIDE 8.6 B DAILY DOUBLE!!!
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SLIDE 8.6 C Find the interest rate for $8000 to increase from $9856.80 in 2 years.
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SLIDE 8.6 D An object is dropped from a height of 75 meters. If the object has an initial velocity of 30 m/s, how long will it take to reach the ground?
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