The graph of f(x) has a corner at (a, 1(a)) if f(x) is continuous at 'a and left-hand derivatives at a' exist and are unequal.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.5: Rational Functions
Problem 53E
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Cusp and Corner
The graph of f(x) has a cusp at (a, 1(a)) if f(x) is continuous at 'a’ and if the following
two conditions hold:
f (x)
f (x)
(i)
→ ∞ as x approaches a from one side
(ii)
→ -00 as x approaches a from the other side
The graph of f(x) has a corner at (a, 1(a)) if f(x) is continuous at 'a' and if the right-hand
and left-hand derivatives at 'a' exist and are unequal.
2
Consider (X) = |X| + 1 and 9X) = 1 + X'. Determine the nature of the graphs (is there a
cusp, corner, or neither) of f(x) and g(x) near the point (0,1).
Transcribed Image Text:Cusp and Corner The graph of f(x) has a cusp at (a, 1(a)) if f(x) is continuous at 'a’ and if the following two conditions hold: f (x) f (x) (i) → ∞ as x approaches a from one side (ii) → -00 as x approaches a from the other side The graph of f(x) has a corner at (a, 1(a)) if f(x) is continuous at 'a' and if the right-hand and left-hand derivatives at 'a' exist and are unequal. 2 Consider (X) = |X| + 1 and 9X) = 1 + X'. Determine the nature of the graphs (is there a cusp, corner, or neither) of f(x) and g(x) near the point (0,1).
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