SOLUTION: Find the x-intercepts for the graph of the equation y=x^2-3x-4. The x-intercepts are _________ help?

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Question 375783: Find the x-intercepts for the graph of the equation y=x^2-3x-4.
The x-intercepts are _________
help?
Found 2 solutions by Fombitz, ewatrrr:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!


Two solutions:


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.
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Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!


Hi

Finding the x-intercepts for the graph of the equation 

y=x^2-3x-4 (y=0 when the graph crosses the x-axis)

0 = x^2-3x-4

solving by factoring

(x-4)(x+1)=0 Note:SUM of the inner product(-4x) and the outer product(1*x) = -3x

(x-4)=0

x=4

(x+1)=0

x = -1 



 

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