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x - 2x - 8 x2 - 2x - 8 Explain why lim = lim (x + 2), and then evaluate lim х-4 X-4 X4 X-4 X-4 ..... Choose the correct answer below. A. x - 2x - 8 The numerator of the expression simplifies to x + 2 for all x, so the limits are equal. X-4 В. x2 - 2x - 8 The limits lim and lim (x+ 2) equal the same number when evaluated using direct substitution. х-4 X-4 X4 С. - 2x - 8 Since = x+2 whenever x#4, it follows that the two expressions evaluate to the same number as x approaches 4. х-4 D. Since each limit approaches 4, it follows that the limits are equal. Now evaluate the limit. x2 - 2x - 8 lim (Simplify your answer.) х- 4 X→4

x - 2x - 8 x2 - 2x - 8 Explain why lim = lim (x + 2), and then evaluate lim х-4 X-4 X4 X-4 X-4 ..... Choose the correct answer below. A. x - 2x - 8 The numerator of the expression simplifies to x + 2 for all x, so the limits are equal. X-4 В. x2 - 2x - 8 The limits lim and lim (x+ 2) equal the same number when evaluated using direct substitution. х-4 X-4 X4 С. - 2x - 8 Since = x+2 whenever x#4, it follows that the two expressions evaluate to the same number as x approaches 4. х-4 D. Since each limit approaches 4, it follows that the limits are equal. Now evaluate the limit. x2 - 2x - 8 lim (Simplify your answer.) х- 4 X→4

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.5: Rational Functions
Problem 7E
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x2 - 2x - 8 x - 2x - 8 Explain why lim = lim (x + 2), and then evaluate lim X-4 X-4 X→4 X→4 X4 ..... Choose the correct answer below. O A. The numerator of the expression x - 2x - 8 simplifies to x +2 for all x, so the limits are equal. X-4 В. x2 - 2x - 8 The limits lim and lim (x+ 2) equal the same number when evaluated using direct substitution. X-4 C. - 2x -8 Since =x+2 whenever x# 4, it follows that the two expressions evaluate to the same number as x approaches 4. х-4 D. Since each limit approaches 4, it follows that the limits are equal. Now evaluate the limit. x2 - 2x - 8 lim (Simplify your answer.) X-4 X→4
Transcribed Image Text:x2 - 2x - 8 x - 2x - 8 Explain why lim = lim (x + 2), and then evaluate lim X-4 X-4 X→4 X→4 X4 ..... Choose the correct answer below. O A. The numerator of the expression x - 2x - 8 simplifies to x +2 for all x, so the limits are equal. X-4 В. x2 - 2x - 8 The limits lim and lim (x+ 2) equal the same number when evaluated using direct substitution. X-4 C. - 2x -8 Since =x+2 whenever x# 4, it follows that the two expressions evaluate to the same number as x approaches 4. х-4 D. Since each limit approaches 4, it follows that the limits are equal. Now evaluate the limit. x2 - 2x - 8 lim (Simplify your answer.) X-4 X→4
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