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Suppose that the x-intercepts of a graph of y = f(x) are -9, and -5


What are the intercepts of a graph of y = 5f(x) ?

Verified Answer :

The solution to the answer is as follows:

We have... 

y = (x + 9)(x + 6) 

Then... 

y = (x + 5(9)) (x + 5(6))
 
= (x + 45) (x + 30) 

Hence, the x-intercepts are -45 and 30.

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