SOLUTION: I understand solving equations but I am lost when it comes to finding the x-intercept of functions: Please explain and answer this problem! Thank You! y = (x

SOLUTION: I understand solving equations but I am lost when it comes to finding the x-intercept of functions: Please explain and answer this problem! Thank You! y = (x - 4)(x + 2)

Question 189452: I understand solving equations but I am lost when it comes to finding the x-intercept of functions:
Please explain and answer this problem! Thank You!
y = (x - 4)(x + 2)
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Just by looking at the graph of a function,
you can see that the x-intercepts occur
where , so to find x-intercepts,
I just set

Now I have 2 factors on the right side. If either one
equal , then the equation is true.

This has to be an x-intercept

This has to be the other x-intercept
I'll graph the equation, too

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