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Hw 11 Quadratic Inequalities
Course: College Algebra (MATH 8)
51 Documents
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University: San José State University
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SJSU Math 08 Homework 11: Quadratic (x2) Inequalities Due: Oct 11th
1. Let f(x) = −x2−3x+ 10 and let g(x) = 2x2−10x−10. For what inputs is f(x)< g(x)?
(a) −5/3< x < 4
(b) −4< x < 5/3
(c) x < −5/3or 4< x
(d) x < −4or 5/3< x
2. Let f(x) = 4x2−3x−12 and let g(x) = 2x2−3x+ 20. For what inputs is f(x)< g(x)?
(a) −2< x < 2
(b) −4< x < 4
(c) x < −2or 2< x
(d) x < −4or 4< x
3. Let f(x) = −6x2+ 12x−5 and let g(x) = −4x2+x. For what inputs is f(x)> g(x)?
(a) −5< x < −1/2
(b) 1/2< x < 5
(c) x < −5or 1/2< x
(d) x < −1/2or 5< x
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