Quadratic Inequalities
Muhtasari
You can already solve a quadratic equation. A quadratic inequality asks a related but richer question: for which values of x is the expression positive, or negative? The answer is no longer a couple of points but a whole range of values, and finding that range turns out to be elegant once you see the structure.
In this lesson you will solve inequalities like \(x^2-x-6>0\) by first finding the roots, then deciding which regions satisfy the inequality using a quick sketch or a sign diagram. You will learn to express answers in the two standard shapes examiners expect: a single interval like \(-3
Malengo
- Find the solution set for quadratic inequalities, either graphically or algebraically.
Maelezo ya Somo
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Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Quadratic Inequalities. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- What is the solution of x^2 - x - 6 > 0? A. -2 < x < 3 B. x < -2 or x > 3 C. -3 < x < 2 D. x < 2 or x > 3 Answer: B
- What is the solution of x^2 - x - 12 < 0? A. x < -3 or x > 4 B. -3 < x < 4 C. -4 < x < 3 D. x < 3 or x > 4 Answer: B
- The roots of a quadratic with a > 0 are -1 and 5. Where is the expression negative? A. x < -1 or x > 5 B. -1 < x < 5 C. x > 5 D. x < -1 Answer: B
- The roots of a quadratic with a > 0 are 2 and 6. Where is the expression positive? A. 2 < x < 6 B. x < 2 or x > 6 C. x < 6 D. x > 2 Answer: B
- Which of these is a valid way to write the solution of a quadratic inequality? A. -2 > x > 3 B. x < -2 or x > 3 C. 3 < x < -2 D. x = -2 or x = 3 Answer: B
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Quadratic Inequalities? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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