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March 30, 2015

March 30, 2015

Posted by **Leanna** on Sunday, August 29, 2010 at 10:40pm.

a. The sum of two one-to-one functions is one-to-one.

b. The product of two one-to-one functions is one-to-one.

c. If f is a one-to-one function and k is a real number (constant), then the function g(x)=k*f(x)is one-to-one.

- Math, Still Need Help! -
**Reiny**, Sunday, August 29, 2010 at 11:23pma) - yes

the sum of ax+b and cx+d is still linear

b) - no

the product of ax+b with cx+d produces a term in x^2. Quadratics are not one-to-one

c) - yes

multiplying a linear like ax+b by a constants keeps it linear.

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