All flashcards
Flashcard 1: Is N=0 reachable for f(x)=x2−1 on [0,2]?
Answer: Yes, because f(0)<0<f(2). f(0)=−1<0<3=f(2) confirms IVT applies for reaching zero.
Flashcard 2: Does f(x)=x2−4 have a root in [1,3] by IVT?
Answer: Yes, because f(1)<0<f(3). f(1)=−3<0<5=f(3) confirms a root exists by IVT.
Flashcard 3: Can IVT be applied to f(x)=x−11 on [0,2]?
Answer: No, f(x) is not continuous on [0,2]. Vertical asymptote at x=1 creates discontinuity within the interval.
Flashcard 4: Determine if IVT holds for f(x)=sin(x) on [0,2π], N=0.5.
Answer: Yes, because f(0)<0.5<f(2π). f(0)=0 and f(2π)=1, so 0<0.5<1 with continuity.
Flashcard 5: Apply IVT: f(x)=x1 on [1,3], N=0.5.
Answer: Yes, because f is continuous and f(1)>0.5>f(3). f(1)=1 and f(3)=31, so 31<0.5<1.
Flashcard 6: Find if IVT applies: f(x)=ex on [0,1], N=2.
Answer: Yes, f(0)<2<f(1), so IVT applies. f(0)=1 and f(1)=e≈2.718, so 1<2<e.
Flashcard 7: Find if IVT applies: f(x)=ln(x) on (0,1], N=−1.
Answer: No, IVT requires closed interval [0,1]. Open interval (0,1] violates IVT requirement for closed intervals.
Flashcard 8: What does the IVT guarantee about f(c) if f(a)<N<f(b)?
Answer: There exists c in (a,b) such that f(c)=N. IVT guarantees existence of c where the function equals the intermediate value.
Flashcard 9: Does the IVT apply to f(x)=1/x on [−1,1]?
Answer: No, because f(x) is not continuous on [−1,1]. Division by zero at x=0 creates discontinuity within the interval.
Flashcard 10: What condition must a function meet to apply the IVT?
Answer: The function must be continuous on the closed interval [a,b]. Continuity ensures no gaps or jumps that could skip intermediate values.
Flashcard 11: Evaluate IVT applicability: f(x)=sin(x) on [0,6π], N=0.3.
Answer: Yes, f(0)<0.3<f(6π). f(0)=0<0.3<0.5=f(6π) confirms IVT applies.
Flashcard 12: What does the IVT not guarantee?
Answer: The specific location of c where f(c)=N. IVT only guarantees existence, not the exact location of the solution.
Flashcard 13: What is required for a value N in IVT?
Answer: N must be between f(a) and f(b). N must lie between the function values at the interval's endpoints.
Flashcard 14: Identify if the IVT can be applied: f(x)=x2, interval [−1,2], N=3.
Answer: Yes, because f is continuous and f(−1)<3<f(2). f(−1)=1 and f(2)=4, so 1<3<4 with continuity satisfied.
Flashcard 15: State the conclusion of the IVT for f(x)=x3 on [1,9], N=5.
Answer: There exists c in (1,9) such that f(c)=5. f(1)=1<5<729=f(9), so IVT guarantees a solution exists.
Flashcard 16: Determine if IVT applies: f(x)=x(x−1) on [0,2], N=0.5.
Answer: Yes, f(0)<0.5<f(2). f(0)=0<0.5<2=f(2) confirms IVT guarantees the value exists.
Flashcard 17: Which type of intervals does the IVT require?
Answer: Closed intervals [a,b]. Closed intervals include endpoints where continuity must be established.
Flashcard 18: Check if f(x)=x4−2x2 satisfies IVT on [0,2], N=1.
Answer: Yes, because f(0)<1<f(2). f(0)=0<1<8=f(2) confirms IVT guarantees the value exists.
Flashcard 19: Identify if IVT can be applied: f(x)=2x+1 on [−1,1], N=0.
Answer: Yes, because f(−1)<0<f(1). f(−1)=−1<0<3=f(1) confirms IVT applies for zero.
Flashcard 20: Check IVT for f(x)=x3−x on [0,2], N=0.5.
Answer: Yes, f(0)<0.5<f(2). f(0)=0 and f(2)=6, so 0<0.5<6 with continuity.
Flashcard 21: Evaluate if IVT holds for f(x)=x2−2 on [1,2], N=0.5.
Answer: Yes, f(1)<0.5<f(2). f(1)=−1<0.5<2=f(2) confirms IVT applies for the value.
Flashcard 22: Determine IVT applicability: f(x)=x2−4 on [2,4], N=0.
Answer: No, f(x) is never 0 on [2,4]. Function equals zero at x=±2, but interval [2,4] has all positive values.
Flashcard 23: Verify IVT for f(x)=x3+x on [0,1], N=0.5.
Answer: Yes, f(0)<0.5<f(1). f(0)=0<0.5<2=f(1) confirms IVT applies with continuity.
Flashcard 24: Does f(x)=cos(x) satisfy IVT on [0,23π], N=0?
Answer: Yes, because f(0)>0>f(23π). f(0)=1>0>−1=f(23π) confirms IVT applies for zero.
Flashcard 25: Check IVT for f(x)=x2−5 on [1,3], N=3.
Answer: Yes, because f(1)<3<f(3). f(1)=−4<3<4=f(3) confirms IVT applies for N=3.
Flashcard 26: Identify the key feature of a function for IVT applicability.
Answer: Continuity on the interval [a,b]. No gaps or jumps ensure all intermediate values between endpoints exist.
Flashcard 27: Does the IVT apply to f(x)=1/x on [−1,1]?
Answer: No, because f(x) is not continuous on [−1,1]. Division by zero at x=0 creates discontinuity within the interval.
Flashcard 28: Determine IVT applicability: f(x)=x2−4 on [2,4], N=0.
Answer: No, f(x) is never 0 on [2,4]. Function equals zero at x=±2, but interval [2,4] has all positive values.
Flashcard 29: Verify IVT for f(x)=x3+x on [0,1], N=0.5.
Answer: Yes, f(0)<0.5<f(1). f(0)=0<0.5<2=f(1) confirms IVT applies with continuity.
Flashcard 30: Does f(x)=cos(x) satisfy IVT on [0,23π], N=0?
Answer: Yes, because f(0)>0>f(23π). f(0)=1>0>−1=f(23π) confirms IVT applies for zero.