Modeling with Quadratic Equations — Unit test Answers
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Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0=2x2+3x-8?Quadratic formula: x =
A
1.39B
2.00C
2.89D
3.5024
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The product of two consecutive integers is 420. Which quadratic equation can be used to find x, the lesser number?
A
x2 + 1 = 420B
x2 + 2 = 420C
x2 + x = 420D
x2 + 2x = 42025
The standard diameter of a golf ball is 42.67 mm. A golf ball factory does quality control on the balls it manufactures. Golf balls are randomly measured to ensure the correct size. One day, an inspector decides to stop production if the discrepancy in diameter is more than 0.002 mm. Which function could represent this situation?
A
f(x ) = x – |42.67|B
f(x ) = |x| – 42.67C
f(x ) = |42.67 – x|D
f(x ) = 42.67 – |x|Did you find these answers helpful?
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