Reciprocal and Absolute Value Functions (HSC SSCE Mathematics Advanced): Flashcards

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Reciprocal and Absolute Value Functions
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General form of transformed reciprocal function

g(x)=lx−a+bg(x) = \frac{l}{x - a} + b

Vertical asymptote of g(x)=lx−a+bg(x) = \frac{l}{x - a} + b

x=ax = a

Horizontal asymptote of g(x)=lx−a+bg(x) = \frac{l}{x - a} + b

y=by = b

Domain of g(x)=lx−a+bg(x) = \frac{l}{x - a} + b

x≠ax \neq a

Range of g(x)=lx−a+bg(x) = \frac{l}{x - a} + b

y≠by \neq b

General form of transformed absolute value function

g(x)=l∣x−a∣+bg(x) = l|x - a| + b

Vertex of g(x)=l∣x−a∣+bg(x) = l|x - a| + b

(a,b)(a, b)

Domain of g(x)=l∣x−a∣+bg(x) = l|x - a| + b

All real numbers

Range of g(x)=l∣x−a∣+bg(x) = l|x - a| + b when l>0l > 0

[b,∞)[b, \infty)

Effect of l<0l < 0 on absolute value graph

V-shape flips upside down (reflects over x-axis)

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