Math, Still Need Help!
posted by Leanna .
Label each statement TRUE or FALSE.
a. The sum of two onetoone functions is onetoone.
b. The product of two onetoone functions is onetoone.
c. If f is a onetoone function and k is a real number (constant), then the function g(x)=k*f(x)is onetoone.

a)  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 onetoone
c)  yes
multiplying a linear like ax+b by a constants keeps it linear.